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100713 (1998 BG20)
Classification: Main-belt Asteroid          SPK-ID: 2100713
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04646184733244708 5.3684e-08  
a 2.931491603741096 2.4581e-08 au
q 2.795289088391726 1.4814e-07 au
i 3.86586775290505 5.7691e-06 deg
node 295.2143587782029 6.8043e-05 deg
peri 209.1713956314515 8.7116e-05 deg
M 143.9768718141259 5.3623e-05 deg
tp 2458267.301375628634
(2018-May-28.80137563)
0.000273 TDB
period 1833.291010200952
5.02
2.3059e-05
6.313e-08
d
yr
n .1963681695905657 2.4699e-09 deg/d
Q 3.067694119090465 2.5723e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      7778 days (21.30 yr)  
   first obs. used      1998-01-22  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:09:41  

Additional Information
 Earth MOID = 1.80834 au 
 Jupiter MOID = 1.94228 au 
 T_jup = 3.271 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456606.5 (2013-Nov-10.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04646022705557448 5.4158e-08  
q 2.790325711112586 1.4986e-07 au
tp 2456417.644447877348
(2013-May-05.14444788)
0.00026971 TDB
node 295.2920292156464 6.8204e-05 deg
peri 205.0155370454263 8.6907e-05 deg
i 3.863019583487573 5.7652e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      7778 days (21.30 yr)  
   first obs. used      1998-01-22  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:09:41  

Additional Information
 Jupiter MOID = 1.94228 au 
 T_jup = 3.271 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.933103633543629E-15 -8.040670564000488E-15 -2.706749588918692E-12 3.867898008541485E-15 -5.61633111660869E-13 1.677347708627412E-16
q -8.040670564000488E-15 2.245726032332086E-14 7.882447950712497E-12 -6.250520100989707E-15 1.633746777394345E-12 -6.217797866464212E-16
tp -2.706749588918692E-12 7.882447950712497E-12 7.274395748993854E-8 -3.226047585483445E-11 1.454995117612919E-8 -6.146006119424155E-12
node 3.867898008541485E-15 -6.250520100989707E-15 -3.226047585483445E-11 4.651842058089896E-9 -4.646915562135965E-9 -2.001314274526978E-11
peri -5.61633111660869E-13 1.633746777394345E-12 1.454995117612919E-8 -4.646915562135965E-9 7.552750152110115E-9 1.870696541871926E-11
i 1.677347708627412E-16 -6.217797866464212E-16 -6.146006119424155E-12 -2.001314274526978E-11 1.870696541871926E-11 3.323780216828388E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO436469  
diameter diameter 3.907 km 0.749 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100713 (1998 BG20)          Discovered 1998-Jan-22 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 BG20 = 2001 TT100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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