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120903 (1998 SV31)
Classification: Main-belt Asteroid          SPK-ID: 2120903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821381011512455 4.9641e-08  
a 2.968026186130351 2.0213e-08 au
q 2.427435532421395 1.3778e-07 au
i 1.867180689017424 4.3461e-06 deg
node 158.7383592492305 0.00014347 deg
peri 199.3320803012026 0.00014402 deg
M 119.7939991323169 1.3781e-05 deg
tp 2458579.012236915667
(2019-Apr-05.51223692)
6.9736e-05 TDB
period 1867.669468678773
5.11
1.9079e-05
5.224e-08
d
yr
n .1927535926657682 1.9691e-09 deg/d
Q 3.508616839839306 2.3895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      9070 days (24.83 yr)  
   first obs. used      1996-03-20  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:09  

Additional Information
 Earth MOID = 1.42203 au 
 Jupiter MOID = 1.94166 au 
 T_jup = 3.238 
[ show covariance matrix ]

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 15.53   n/a E2021B55  
diameter diameter 4.110 km 0.843 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120903 (1998 SV31)          Discovered 1998-Sep-20 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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