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Forum » SpaceEngine » Mods and Addons » COMMUNITY ADDON - Double/Multiple Asteroids fixes for SE (Catalog fixes for multiple asteroids)
COMMUNITY ADDON - Double/Multiple Asteroids fixes for SE
MosfetDate: Tuesday, 03.05.2016, 22:20 | Message # 16
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(5143) Heracles, Near Earth Asteroid

Code
Barycenter "Heracles/(5143) Heracles"
{
    ParentBody    "Sol"
    Orbit
    {
    Epoch   2457600.5
    SemiMajorAxis    1.833500481
    Period   2.482731444
    MeanAnomaly  294.9388476797092
    ArgOfPericenter    227.705989
    Eccentricity    0.772242011
    Inclination  9.0355614
    AscendingNode    309.56692
    PericenterDist    0.417594382
    RefPlane     "Ecliptic"
    }
}

Asteroid "5143 Heracles"
{
    ParentBody  "Heracles"
    Radius   1.8
    AbsMagn   13.8
    SlopeParam  0.15
    Albedo   0.4
    RotationPeriod    2.706
    Orbit
    {
  SemiMajorAxis    1.6838143e-8 //   4  km
  Period   0.0017681418 //   0.6458  days
  MeanAnomaly  0
  ArgOfPericenter    0
  RefPlane    "Equator"
    }
}

Asteroid "S 2011 (5143) 1"
{
    ParentBody    "Heracles"
    Radius  0.3
    SlopeParam    0.15
    Albedo  0.4
    Orbit
    {
  SemiMajorAxis    2.666039412E-08 //   4  km
  Period   0.0017681418 //   0.6458  days
  MeanAnomaly  0
  ArgOfPericenter    180
  TidalLocked  true
  RefPlane  "Equator"
    }
}





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
 
SiliconDate: Wednesday, 04.05.2016, 23:57 | Message # 17
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Here is another set of asteroids. This time three near-Earth and a main-belt.
1998 RO1, 2004 BL86, 65803 Didymos, and 762 Pulcova
Code
Asteroid "1998 RO1/(66063) 1998 RO1"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    AsterType   "Aten"
    Radius      0.4
    Mass        6.969E-14

    RotationPeriod  2.492
    Obliquity       37
    EqAscendNode    277
    
    Orbit
    {
        Epoch            2457400.5
        MeanMotion       0.515
        SemiMajorAxis    0.990924
  Period           0.986427
        Eccentricity     0.720129
        Inclination      22.68
        AscendingNode    351.875
        ArgOfPericenter  151.13
        MeanAnomaly      109.479
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "1998 RO1 Beta"
{
    ParentBody  "1998 RO1"
    Class       "Asteroid"
    AsterType   "Aten"
    Radius      0.19
    Mass        5.16E-15

    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   8.019E-9
        Period          0.001659
  Inclination  37
        AscendingNode   277
        RefPlane       "Ecliptic"
    }
}

Asteroid "2004 BL86/(357439) 2004 BL86"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    AsterType   "Apollo"
    Radius      0.1625

    RotationPeriod  2.6205

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    1.5022
  Period    1.8412
        Eccentricity     0.40307
        Inclination      23.744
        AscendingNode    126.72
        ArgOfPericenter  311.25
        MeanAnomaly      354.03
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2015 (357439) 1"
{
    ParentBody  "2004 BL86"
    Class       "Asteroid"
    AsterType   "Apollo"
    Radius      0.035
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   3.34E-9
        Period          0.001643
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

Asteroid "Didymos/65803 Didymos"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    AsterType   "Apollo"
    Radius      0.4
    Mass        8.824E-14

    RotationPeriod  2.2593
    Obliquity       19
    EqAscendNode    157

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    1.6443
  Period    2.108544
        Eccentricity     0.38388
        Inclination      3.4078
        AscendingNode    73.228
        ArgOfPericenter  319.232
        MeanAnomaly      283.85
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2003 (65803) 1"
{
    ParentBody  "Didymos"
    Class       "Asteroid"
    AsterType   "Apollo"
    Radius      0.075
    Mass        4.217E-16
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   7.888E-9
  Period   0.001357
        Eccentricity    0.06
        Inclination     0
        RefPlane       "Equator"
    }
}

Asteroid "Pulcova/762 Pulcova"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      70.86
    Mass        2.344E-7

    RotationPeriod  5.839

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    3.1562
  Period    5.6074
        Eccentricity     0.10289
        Inclination      13.089
        AscendingNode    305.76
        ArgOfPericenter  189.18
        MeanAnomaly      305.76
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2000 (762) 1"
{
    ParentBody  "Pulcova"
    Class       "Asteroid"
    Radius      8
    Mass        3.35E-10
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   4.699E-6
  Period   0.012151
        Eccentricity    0.03
        Inclination     0
        RefPlane       "Equator"
    }
}


Added (04.05.2016, 23:57)
---------------------------------------------
Here is some more triple systems. I think this completes all currently known triples.
3749 Balam, 130 Elektra, 216 Kleopatra, and 2577 Litva
Code
Asteroid "Balam/3749 Balam"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      3.5
    Mass        8.54E-11

    RotationPeriod  2.80483

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    2.2367
  Period    3.3452
        Eccentricity     0.1093
        Inclination      1.9923
        AscendingNode    295.74
        ArgOfPericenter  173.98
        MeanAnomaly      260.39
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2002 (3749) 1"
{
    ParentBody  "Balam"
    Class       "Asteroid"
    Radius      0.92
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   1.932E-6
  Period   0.167012
        Eccentricity    0.9
        Inclination     0
        RefPlane       "Equator"
    }
}

DwarfMoon "S/2008 (3749) 1"
{
    ParentBody  "Balam"
    Class       "Asteroid"
    Radius      0.83
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   1.337E-7
  Period   0.003808
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

Asteroid "Elektra/130 Elektra"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      99.465
    Mass        1.105E-6

    RotationPeriod  5.22468
    Obliquity       83
    EqAscendNode    12

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    3.1232
  Period    5.5197
        Eccentricity     0.20845
        Inclination      22.8675
        AscendingNode    145.41
        ArgOfPericenter  235.64
        MeanAnomaly      346.72
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2003 (130) 1"
{
    ParentBody  "Elektra"
    Class       "Asteroid"
    Radius      3.5

    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   8.81E-6
  Period   0.014396
        Eccentricity    0.13
        Inclination     3
        RefPlane       "Equator"
    }
}

DwarfMoon "S/2014 (130) 1"
{
    ParentBody  "Elektra"
    Class       "Asteroid"
    Radius      2.6

    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   3.075E-6
  Period   0.003012
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

Asteroid "Kleopatra/216 Kleopatra"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      67.5
    Mass        7.769E-7

    RotationPeriod  5.385277
    Obliquity       8
    EqAscendNode    72

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    2.7968
  Period    4.6774
        Eccentricity     0.2492
        Inclination      13.096
        AscendingNode    215.46
        ArgOfPericenter  180.31
        MeanAnomaly      50.546
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "Alexhelios"
{
    ParentBody  "Kleopatra"
    Class       "Asteroid"
    Radius      4.45
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   4.532E-6
  Period   0.006352
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

DwarfMoon "Cleoselene"
{
    ParentBody  "Kleopatra"
    Class       "Asteroid"
    Radius      3.45
    
    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   3.035E-6
  Period   0.003395
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

Asteroid "Litva/2577 Litva"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      2

    RotationPeriod  2.813

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    1.9044
  Period    2.6282
        Eccentricity     0.13794
        Inclination      22.908
        AscendingNode    182.61
        ArgOfPericenter  283.98
        MeanAnomaly      26.575
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2009 (2577) 1"
{
    ParentBody  "Litva"
    Class       "Asteroid"
    Radius      0.7

    RotationPeriod  5.6842

    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   1.404E-7
  Period   0.004093
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

DwarfMoon "S/2012 (2577) 1"
{
    ParentBody  "Litva"
    Class       "Asteroid"
    Radius      0.6

    Orbit
    {
        Epoch           2457400.5
        SemiMajorAxis   2.527E-6
  Period   0.585912
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}


Edited by Silicon - Thursday, 05.05.2016, 02:18
 
MosfetDate: Friday, 06.05.2016, 23:12 | Message # 18
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Asteroid 3749 Balam has a very high eccentricity and I have calculated, or better I tried, plausible barycenters from volume ratios.




"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
 
MosfetDate: Saturday, 07.05.2016, 23:15 | Message # 19
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(5381) Sekhmet, double NEA
Code
Barycenter "Sekhmet/(5381) Sekhmet"
{
    ParentBody  "Sol"
    Orbit
    {
  Epoch   2457600.5
  SemiMajorAxis    0.947461319    
  Period   0.922253761    
  MeanAnomaly  232.9560028829811    
  ArgOfPericenter    37.435861    
  Eccentricity    0.29623718    
  Inclination  48.969357    
  AscendingNode    58.5495966    
  PericenterDist    0.66678805    
  RefPlane  "Ecliptic"    
    }
}

Asteroid "5381 Sekhmet"
{
    ParentBody  "Sekhmet"
    AsterType  "Aten"
    Radius   0.5
    AbsMagn   16.5    
    SlopeParam  0.15    
    Albedo   0.25
    RotationPeriod    2.7  
    Orbit
    {
  SemiMajorAxis    2.70637909000897E-10 //   1.54  km
  Period   0.0014259032 //   0.5208  days
  MeanAnomaly  0    
  ArgOfPericenter    0    
  Eccentricity    0    
  Inclination  0    
  AscendingNode    0    
  RefPlane  "Equator"
    }
}

Asteroid "S2003 (5381) 1"
{
    ParentBody  "Sekhmet"
    AsterType   "Aten"
    Radius   0.15
    RotationPeriod    10
    Orbit
    {
  SemiMajorAxis    1e-8 //   1.54  km
  Period   0.0014259032 //   0.5208  days
  MeanAnomaly  0
  ArgOfPericenter    180    
  Eccentricity    0    
  Inclination  0    
  AscendingNode    0
  RefPlane  "Equator"
    }
}





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
 
MosfetDate: Sunday, 08.05.2016, 23:07 | Message # 20
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other double NEAs, should we be worried? (3671) Dionysus and (69230) Hermes

Code
Barycenter "Hermes/(69230) Hermes"
{
    ParentBody  "Sol"
    Orbit
    {
  Epoch   2457600.5
  SemiMajorAxis    1.655109415    
  Period   2.129355952    
  MeanAnomaly  330.6278831909314
  ArgOfPericenter    92.7131629
  Eccentricity    0.62413501
  Inclination  6.068238
  AscendingNode    34.2429732
  PericenterDist    0.622097684    
  RefPlane  "Ecliptic"
    }
}

Asteroid "69230 Hermes"
{
    ParentBody   "Hermes"
    AsterType  "Apollo"
    Radius   0.3
    AbsMagn   17.5
    SlopeParam  0.15
    Albedo   0.25
    RotationPeriod    13.894
    Orbit
    {
  SemiMajorAxis    3.10027207249686E-09 //   1.1  km
  Period   0.0015849757 //   0.5789  days
  MeanAnomaly  0
  ArgOfPericenter    0    
  Eccentricity    0
  RefPlane  "Equator"
    }
}

DwarfMoon "S2003 (69230) 1"
{
    ParentBody   "Hermes"
    Class   "Asteroid"
    AsterType  "Apollo"
    Radius   0.27
    RotationPeriod    13.892
    Orbit
    {
  SemiMajorAxis    4.25277376199843E-09 //   1.1  km
  Period   0.0015849757 //   0.5789  days
  MeanAnomaly  0
  ArgOfPericenter    180    
  Eccentricity    0
  RefPlane  "Equator"
    }
}

Barycenter "Dionysus/(3671) Dionysus"
{
    ParentBody  "Sol"
    Orbit
    {
  Epoch   2457600.5    
  SemiMajorAxis    2.197503781    
  Period   3.257636697    
  MeanAnomaly  304.8556796126329
  ArgOfPericenter    204.192352    
  Eccentricity    0.542416439    
  Inclination  13.5501872    
  AscendingNode    82.161864    
  PericenterDist    1.005541605    
  RefPlane   "Ecliptic"
    }
}

Asteroid "3671 Dionysus"
{
    ParentBody   "Dionysus"
    AsterType   "Amor"
    Radius   0.715
    AbsMagn   16.4
    SlopeParam  0.15
    Albedo   0.179
    RotationPeriod    2.705
    Orbit
    {
  SemiMajorAxis    1.87988908655175E-10   //   3.4  km
  Period   0.0031650232   //   1.156  days
  MeanAnomaly  0    
  ArgOfPericenter    0    
  Eccentricity    0.07
  Inclination  0    
  AscendingNode    0    
  RefPlane  "Equator"
    }
}

DwarfMoon "S1997 (3671) 1"
{
    ParentBody "Dionysus"
    Class "Asteroid"
    AsterType "Amor"
    Radius    0.145
    Orbit
    {
  SemiMajorAxis    2.25396073070575E-08   //   3.4  km
  Period   0.0031650232   //   1.156  days
  MeanAnomaly  0    
  ArgOfPericenter    180    
  Eccentricity    0.07
  Inclination  0    
  AscendingNode    0    
  RefPlane  "Equator"
    }
}





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
 
SiliconDate: Monday, 09.05.2016, 21:18 | Message # 21
Astronaut
Group: Users
United States
Messages: 51
Status: Offline
1139 Atami, 1993 QO, 5261 Eureka, and 26074 Carlwirtz
Code
Barycenter "Atami/(1139) Atami"
{
    ParentBody "Sol"

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    1.9476
  Period   2.7181
  Eccentricity    0.2555
  Inclination  13.085
  AscendingNode    213.37
  ArgOfPericenter    206.63
  MeanAnomaly  35.579
  RefPlane  "Ecliptic"
    }
}

Asteroid "Atami A/(1139) Atami A"
{
    ParentBody  "Atami"
    Class       "Asteroid"
    Radius      3 //Volume 113.1 = 63.34% of total
    Mass  3.031E-11 //Assuming a density of 1.6 g/cm^3

    RotationPeriod  27.45
    Obliquity       0

    Orbit
    {
  SemiMajorAxis    3.6759E-8 // separation    15 km
  Period   0.003132
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    0
  MeanAnomaly  0
  RefPlane  "Equator"
    }
}

DwarfMoon "Atami B/(1139) Atami B"
{
    ParentBody  "Atami"
    Class       "Asteroid"
    Radius      2.5 //Volume 65.45 = 36.66% of total
    Mass  1.753E-11 //Assuming a density of 1.6 g/cm^3

    RotationPeriod  27.45
    Obliquity       0

    Orbit
    {
  SemiMajorAxis    6.351E-8 // separation    15 km
  Period   0.003132
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    180
  MeanAnomaly  0
  RefPlane  "Equator"
    }
}

Asteroid "1993 QO/(16635) 1993 QO"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      2.305

    RotationPeriod  7.622

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    2.2983
  Period           3.4843
        Eccentricity     0.28424
        Inclination      21.943
        AscendingNode    313.81
        ArgOfPericenter  77.948
        MeanAnomaly      4.7118
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S2007 16635 1"
{
    ParentBody  "1993 QO"
    Class       "Asteroid"
    Radius      0.72

    RotationPeriod  2.2083

    Orbit
    {
        SemiMajorAxis   8.022E-8
        Period          0.00368
  Inclination  0
        RefPlane       "Equator"
    }
}

Asteroid "Eureka/(5261) Eureka"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      0.595

    RotationPeriod  2.6902

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    1.5235
  Period           1.880519722
        Eccentricity     0.064859
        Inclination      20.28
        AscendingNode    245.06
        ArgOfPericenter  95.47
        MeanAnomaly      295.62
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S2011 5261 1"
{
    ParentBody  "Eureka"
    Class       "Asteroid"
    Radius      0.23

    Orbit
    {
        SemiMajorAxis   1.4E-8
        Period          0.001931
  Inclination  0
        RefPlane       "Equator"
    }
}

Asteroid "Carlwirtz/(26074) Carlwirtz"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      1.81

    RotationPeriod  2.4593
    
    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    1.811
  Period           2.4372
        Eccentricity     0.088958
        Inclination      31.614
        AscendingNode    102.83
        ArgOfPericenter  73.385
        MeanAnomaly      190.66
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S2013 26074 1"
{
    ParentBody  "Carlwirtz"
    Class       "Asteroid"
    Radius      0.2

    Orbit
    {
        SemiMajorAxis   4.08E-8
        Period          0.001838
  Inclination  0
        RefPlane       "Equator"
    }
}
 
SiliconDate: Monday, 09.05.2016, 22:28 | Message # 22
Astronaut
Group: Users
United States
Messages: 51
Status: Offline
41 Daphne, 174567 Varda, 88611 Teharonhiawako, 2002 VT130, and 2002 XH91. All TNOs. (Except Daphne)
VT130 and XH91 have no permanent designations so I was unsure how to name them.
Also the version of Teharonhiawako that comes packaged with SE does not get replaced by this one. I dont know why.
Code
Asteroid "Daphne/(41) Daphne"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    Radius      87
    Mass  1.057E-6

    RotationPeriod  5.9879856

    Orbit
    {
        Epoch            2457400.5
        SemiMajorAxis    2.7607
  Period    4.5871
        Eccentricity     0.27514
        Inclination      15.793
        AscendingNode    178.09
        ArgOfPericenter  46.013
        MeanAnomaly      107.31
        RefPlane       "Ecliptic"
    }
}

DwarfMoon "S/2008 (41) 1"
{
    ParentBody  "Daphne"
    Class       "Asteroid"
    Radius      1
    
    Orbit
    {
        SemiMajorAxis   2.961E-6
        Period          0.003012
        Eccentricity    0
        Inclination     0
        RefPlane       "Equator"
    }
}

Barycenter "Varda-Ilmare"
{
    ParentBody "Sol"

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    45.6342
  Period   308.279
  Eccentricity    0.141677
  Inclination  21.5045
  AscendingNode    184.032
  ArgOfPericenter    184.310
  MeanAnomaly  263.701
  RefPlane  "Ecliptic"
    }
}

Asteroid "Varda/174567 Varda"
{
    ParentBody  "Varda-Ilmare"
    Class       "IceWorld"
    Radius      352.5 //Volume 1.83E8 = 88.15% of total
    Mass  3.891E-5 //Assuming a density of 1.27 g/cm^3
    Oblateness      0
    RotationPeriod  5.91
    Obliquity       100
    EqAscendNode    0

    Surface
    {
  colorSea       (0.144, 0.084, 0.045, 1.000)
  colorShelf     (0.189, 0.116, 0.065, 1.000)
  colorBeach     (0.305, 0.151, 0.069, 0.200)
  colorDesert    (0.333, 0.169, 0.082, 0.200)
  colorLowland   (0.361, 0.178, 0.086, 0.200)
  colorUpland    (0.389, 0.213, 0.102, 0.200)
  colorRock      (0.920, 0.870, 0.660, 0.150)
  colorSnow      (1.000, 1.000, 1.000, 0.154)
  colorLowPlants (0.361, 0.178, 0.086, 0.200)
  colorUpPlants  (0.389, 0.213, 0.102, 0.200)
    }

    Orbit
    {
  SemiMajorAxis    3.8022E-6 // separation 4800 km
  Period   0.015745
  Eccentricity    0.017
  Inclination  100
  ArgOfPericenter    0
  MeanAnomaly  0
        AscendingNode   0
  RefPlane  "Equator"
    }
}

DwarfMoon "Ilmare/Varda I Ilmare"
{
    ParentBody  "Varda-Ilmare"
    Class       "IceWorld"
    Radius      180.5 //Volume 2.46E7 = 11.85% of total
    Mass  5.231E-6 //Assuming a density of 1.27 g/cm^3

    Surface
    {
  colorSea       (0.144, 0.084, 0.045, 1.000)
  colorShelf     (0.189, 0.116, 0.065, 1.000)
  colorBeach     (0.305, 0.151, 0.069, 0.200)
  colorDesert    (0.333, 0.169, 0.082, 0.200)
  colorLowland   (0.361, 0.178, 0.086, 0.200)
  colorUpland    (0.389, 0.213, 0.102, 0.200)
  colorRock      (0.920, 0.870, 0.660, 0.150)
  colorSnow      (1.000, 1.000, 1.000, 0.154)
  colorLowPlants (0.361, 0.178, 0.086, 0.200)
  colorUpPlants  (0.389, 0.213, 0.102, 0.200)
    }

    Orbit
    {
  SemiMajorAxis    2.8885E-5 // separation 4800 km
  Period   0.015745
  Eccentricity    0.017
  Inclination  100
  ArgOfPericenter    180
  MeanAnomaly  0
        AscendingNode   0
  RefPlane  "Equator"
    }
}

Barycenter "Teharonhiawako-Sawiskera"
{
    ParentBody "Sol" //Volume 4.07E6

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    43.894
  Period   290.816
  Eccentricity    0.029879
  Inclination  2.58688
  AscendingNode    304.84
  ArgOfPericenter    233.57
  MeanAnomaly  159.46
  RefPlane  "Ecliptic"
    }
}

Asteroid "Teharonhiawako/(88611) Teharonhiawako"
{
    ParentBody  "Teharonhiawako-Sawiskera"
    Class       "Asteroid"
    Radius      89 //Volume 2.95E6 = 72.48%
    Mass  2.962E-7

    RotationPeriod  9.505

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    5.0912E-5 // 27670 km
  Period   2.269068
  Eccentricity    0.2494
  Inclination  144.42
  AscendingNode    54.22
  ArgOfPericenter    200.1
  MeanAnomaly  296.2
  RefPlane  "Equator"
    }
}

DwarfMoon "Sawiskera/Teharonhiawako I Sawiskera"
{
    ParentBody  "Teharonhiawako-Sawiskera"
    Class       "Asteroid"
    Radius      64.5 //Volume 1.12E6 = 27.52%
    Mass  6.71E-8

    RotationPeriod  9.5

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    1.34088E-4 // 27670 km
  Period   2.269068
  Eccentricity    0.2494
  Inclination  144.42
  AscendingNode    54.22
  ArgOfPericenter    20.1
  MeanAnomaly  296.2
  RefPlane  "Equator"
    }
}

Barycenter "2002 XH91 Barycenter"
{
    ParentBody "Sol" //Volume 1.722E7

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    44.182
  Period   293.68
  Eccentricity    0.08389
  Inclination  4.98507
  AscendingNode    80.4332
  ArgOfPericenter    183.96
  MeanAnomaly  212.86
  RefPlane  "Ecliptic"
    }
}

Asteroid "2002 XH91"
{
    ParentBody  "2002 XH91 Barycenter"
    Class       "Asteroid"
    Radius      149 //Volume 1.39E7 = 80.72%

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    2.56E-5 // 19900 km
  Period   0.520202
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    0
  MeanAnomaly  0
  RefPlane  "Equator"
    }
}

DwarfMoon "S2008 2002 XH91 1"
{
    ParentBody  "2002 XH91 Barycenter"
    Class       "Asteroid"
    Radius      92.5 //Volume 3.32E6 = 19.28%

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    1.07E-4 // 19900 km
  Period   0.520202
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    180
  MeanAnomaly  0
  RefPlane  "Equator"
    }
}

Barycenter "2002 VT130 Barycenter"
{
    ParentBody "Sol" //Volume 12.79E6

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    42.623
  Period   278.271
  Eccentricity    0.02952
  Inclination  1.1615
  AscendingNode    334.86
  ArgOfPericenter    350.7
  MeanAnomaly  105.85
  RefPlane  "Ecliptic"
    }
}

Asteroid "2002 VT130"
{
    ParentBody  "2002 VT130 Barycenter"
    Class       "Asteroid"
    Radius      125.5 //Volume 8.28E6 = 64.74%
    RotationPeriod  235.2
    Obliquity       0

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    5.867E-6 // 2490 km
  Period   0.026831
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    0
  MeanAnomaly  0
  RefPlane  "Equator"
    }
}

DwarfMoon "S2008 2002 VT130 1"
{
    ParentBody  "2002 VT130 Barycenter"
    Class       "Asteroid"
    Radius      102.5 //Volume 4.51E6 = 35.26%

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    1.077E-5 // 2490 km
  Period   0.026831
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    180
  MeanAnomaly  0
  RefPlane  "Equator"
    }
}


Edited by Silicon - Tuesday, 10.05.2016, 17:14
 
SiliconDate: Tuesday, 10.05.2016, 17:44 | Message # 23
Astronaut
Group: Users
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Messages: 51
Status: Offline
NEA 2002 AM31 and 5674 Wolff
Code
Asteroid "2002 AM31/153958 2002 AM31"
{
    ParentBody  "Sol"
    Class       "Asteroid"
    AsterType   "Apollo"
    Radius      0.225
    Mass  2.411E-14 //Assuming a density of 3 g/cm^3
    RotationPeriod  2.817

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    1.703
  Period   2.2225
  Eccentricity    0.45168
  Inclination  4.6448
  AscendingNode    144.41
  ArgOfPericenter    197.83
  MeanAnomaly  282.02
  RefPlane  "Ecliptic"
    }
}

DwarfMoon "S/2012 (153958) 1"
{
    ParentBody  "2002 AM31"
    Class       "Asteroid"
    AsterType   "Apollo"
    Radius      0.055
    Mass  3.501E-16 //Assuming a density of 3 g/cm^3

    Orbit
    {
  SemiMajorAxis    1E-8 // separation 1.5 km
  Period   0.003001
  Eccentricity    0.45
  Inclination  0
  RefPlane  "Equator"
    }
}

Barycenter "Wolff Barycenter"
{
    ParentBody "Sol"

    Orbit
    {
  Epoch   2457400.5
  SemiMajorAxis    2.3574
  Period   3.6194
  Eccentricity    0.16635
  Inclination  1.7035
  AscendingNode    39.819
  ArgOfPericenter    311.55
  MeanAnomaly  40.268
  RefPlane  "Ecliptic"
    }
}

Asteroid "Wolff/5674 Wolff"
{
    ParentBody  "Wolff Barycenter"
    Class       "Asteroid"
    Radius      2.36 //Volume 55.06 = 66.07%
    RotationPeriod  93.7
    Obliquity       0
    EqAscendNode    0

    Orbit
    {
  SemiMajorAxis    6.803E-8 // separation 30 km
  Period   0.010689
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    0
  MeanAnomaly  0
        AscendingNode   0
  RefPlane  "Equator"
    }
}

DwarfMoon "S/2015 5674 1"
{
    ParentBody  "Wolff Barycenter"
    Class       "Asteroid"
    Radius      1.89 //Volume 28.28 = 33.93%
    RotationPeriod  93.7

    Orbit
    {
  SemiMajorAxis    1.325E-7 // separation 30 km
  Period   0.010689
  Eccentricity    0
  Inclination  0
  ArgOfPericenter    180
  MeanAnomaly  0
        AscendingNode   0
  RefPlane  "Equator"
    }
}


Edited by Silicon - Tuesday, 10.05.2016, 19:08
 
MosfetDate: Tuesday, 10.05.2016, 21:04 | Message # 24
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Quote Silicon ()
Teharonhiawako that comes packaged with SE does not get replaced by this one. I dont know why.

Haven't tried yet, but since the asteroid is not replaced by a barycenter with the same name, I suspect that will exist two asteroids with the same name, possibly different locations because of different epoch. In that case, the SE packaged one should be removed by a "Remove script" in a modified Asteroids-small.sc, I think.
Changing the name of the barycenter it's the easy way :)

Edit: I see you did the same for the others, so if only Teharonhiawako behaved like this I'm clueless too. Maybe someone else will help solve the mistery.

Edit 2:

I just tried. In order to use the script as it is, we need to remove the existing SE version of "Teharon... that, before declaring the new one with:
Code
Remove "Teharonhiawako"
{ParentBody "Sol"}

Then the new one will replace the old one. In SE.log:
Code
[MT] "data/catalogs/planets/MS-Asteroids-bin-Test.sc" line 108:    Removing body    "Teharonhiawako/(88611) Teharonhiawako"  ("data/catalogs/Catalogs0974.pak/planets/KuiperBelt-small.sc" line 933)

The same eventually for other duplicates. If the name used for the original asteroid is assigned to the barycenter, then the original asteroid is replaced by the barycenter, and the data will result as "merged" in SE.log.





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram


Edited by Mosfet - Tuesday, 10.05.2016, 21:43
 
JackDoleDate: Tuesday, 10.05.2016, 21:21 | Message # 25
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Quote Silicon ()
Also the version of Teharonhiawako that comes packaged with SE does not get replaced by this one.

Try this:

Code
Remove "Teharonhiawako
{
    ParentBody    "Sol"
}

Set it to the beginning of the script.





Don't forget to look here.

 
MosfetDate: Tuesday, 10.05.2016, 21:47 | Message # 26
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oops, sorry JackDole, didn't see your post. Yes, it will work placed just before the new "Asteroid" declaration.

About Semimajor axis value for barycenters:
I don't know if it makes sense what I did in order to calculate a plausible barycenter, like others did, so I'll write here. My reasoning is as follows:

Usually a binary asteroid is made by the same material, then the value of the density is the same.
So the mass ratio and the volume ratio is the same. MA/MB = VA/VB
but given the approximated sphere volume of radius r, V= 4/3*pi*r3,
VA/VB = rA3/rB3
and
VA/(VA+VB) = rA3/(rA3+rB3)
which gives the semimajor axis for the barycenter of asteroid A, knowing the separation and radii of A and B components:
SemimajorAxisA = (1-(rA3/(rA3+rB3))*SeparationAB





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram


Edited by Mosfet - Tuesday, 10.05.2016, 23:10
 
SiliconDate: Wednesday, 11.05.2016, 02:08 | Message # 27
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Your math is correct however it is based off the assumption that the two objects have the same density and that asteroids are perfect spheres. This is fine for when the true mass of a pair is unknown (however I tend to avoid using barycenters if this is the case) however if the true mass is known I would recommend using the full formula.
Quote Mosfet ()
Usually a binary asteroid is made by the same material, then the value of the density is the same.

It is not easy to make this assumption because many asteroids are "rubble piles", loss rock held together only by self gravitation. This means that even in asteroids composed of the same material they can have differences in their densities depending on how much of their interior is a void.


Edited by Silicon - Wednesday, 11.05.2016, 02:39
 
MosfetDate: Wednesday, 11.05.2016, 08:48 | Message # 28
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Thanks for the clarification, I see why you prefer not to use a barycenter in case of unknown mass.
My reasoning was indeed started by the urge to find an aesthetically pleasing and plausible barycenter with a minimum of parameters, despite the fact that knowing porosity and other physical data could significantly change the true barycenter position.

Edit:
Just updated the OP. Regarding names of not yet designated asteroids, I'd say let's use the provisional name. With names like "S/2008 (41) 1" the slash must be removed because SE use that character to part various catalog designations of objects, or in the search window we'll have a bunch of objects with a single "S" as designation.

As in the case of 88611 Teharonhiawako, The original SE object had to be removed by using:

Remove "Teharonhiawako"
{ParentBody "Sol"}

before declaring the new object.

This is true also for other objects that could be duplicated, as in the case of Varda, a somewhat recent assigned name I guess, because it's in SE catalog with the name "2003 MW12".





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram


Edited by Mosfet - Wednesday, 11.05.2016, 15:13
 
SiliconDate: Wednesday, 11.05.2016, 15:40 | Message # 29
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I made some fixes to the orbit lines. I had to change some of the "DwarfMoon" tags to "Asteroid" tags to keep asteroids from displaying when orbit lines are toggled. It appears that when the "DwarfMoon" tag is used on systems with more than one barycenter or on the more massive companion of binaries it will display the orbit around around the Sun.
The altered bodies are Balam, Litva, and Hermes.
I wasn't able to fix the orbits from TC36. It still displays it's orbit when orbit lines are toggled.

EDIT:
Sorry this was my fault! I had my SE settings set to display the orbits of dwarf moons. Because this setting is off by default the average user wont notice it. There is no need to update OP. At least until the "Scorched Asteroid Bug" is fixed.
EDIT 2:
I did some experimenting and I found out that SE does not like it when you give a barycenter a mass value. In short if you give a barycenter mass SE thinks that it is the barycenter of a star.
The barycenters for TC36 have this and should be fixed in OP. I have attached the fixed Asteroids-bin

Attachments: 5260593.sc(44Kb)


Edited by Silicon - Wednesday, 11.05.2016, 18:43
 
MosfetDate: Wednesday, 11.05.2016, 21:55 | Message # 30
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You are saying that "Barycenter" becomes like "StarBarycenter"? if this is a bug, it should be described in the troubleshooting session for 0.9.7.4 .
would you care to elaborate in order to see if I can replicate the issue?





"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
 
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