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91181 (1998 RV38)
Classification: Main-belt Asteroid          SPK-ID: 2091181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122114920286134 7.3898e-08  
a 3.093959251020578 3.6464e-08 au
q 2.716140663713654 2.2724e-07 au
i 15.51630667287824 8.5924e-06 deg
node 355.6889330428693 2.2686e-05 deg
peri 23.61083257841891 3.7019e-05 deg
M 335.3403302661717 3.0747e-05 deg
tp 2459136.661731725864
(2020-Oct-14.16173173)
0.00017062 TDB
period 1987.789128986902
5.44
3.5141e-05
9.621e-08
d
yr
n .1811057293504155 3.2017e-09 deg/d
Q 3.471777838327503 4.0917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      7625 days (20.88 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:01:08  

Additional Information
 Earth MOID = 1.7233 au 
 Jupiter MOID = 2.01915 au 
 T_jup = 3.157 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456462.5 (2013-Jun-19.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262750374645587 7.5562e-08  
q 2.702795446846129 2.3461e-07 au
tp 2457139.699736065945
(2015-Apr-27.19973607)
0.00015142 TDB
node 356.0092119444216 2.2627e-05 deg
peri 21.96157685465566 3.5736e-05 deg
i 15.55986823089255 8.5993e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      7625 days (20.88 yr)  
   first obs. used      1998-08-30  
   last obs. used      2019-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:01:08  

Additional Information
 Jupiter MOID = 2.01915 au 
 T_jup = 3.157 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.70954404182707E-15 -1.756808996192366E-14 -2.869007592950161E-12 2.542008455409328E-14 -7.533053005956042E-13 -1.546791524505613E-14
q -1.756808996192366E-14 5.504186853703867E-14 9.915740940354037E-12 -7.53299235272885E-14 2.441481849047154E-12 4.861036280807959E-14
tp -2.869007592950161E-12 9.915740940354037E-12 2.29285550906645E-8 3.286338177007859E-12 4.185409033867279E-9 -1.281140193722911E-11
node 2.542008455409328E-14 -7.53299235272885E-14 3.286338177007859E-12 5.119967334344261E-10 -4.931311944045538E-10 -3.108445025274904E-11
peri -7.533053005956042E-13 2.441481849047154E-12 4.185409033867279E-9 -4.931311944045538E-10 1.277091274927305E-9 2.79351021484069E-11
i -1.546791524505613E-14 4.861036280807959E-14 -1.281140193722911E-11 -3.108445025274904E-11 2.79351021484069E-11 7.394874071374538E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO344928  

91181 (1998 RV38)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 RV38 = 2000 BM29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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