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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1820236350879261 4.9682e-08  
a 2.967813935131699 2.0503e-08 au
q 2.427601654394425 1.3807e-07 au
i 1.866972857439991 4.3874e-06 deg
node 158.7445647048494 0.00015548 deg
peri 199.2974957864612 0.00015607 deg
M 81.28688585969958 1.4197e-05 deg
tp 2458578.831250028531
(2019-Apr-05.33125003)
7.2771e-05 TDB
period 1867.469129666692
5.11
1.9352e-05
5.298e-08
d
yr
n .1927742709536801 1.9976e-09 deg/d
Q 3.508026215868973 2.4235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      8731 days (23.90 yr)  
   first obs. used      1996-03-20  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:53:53  

Additional Information
 Earth MOID = 1.42385 au 
 Jupiter MOID = 1.94134 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 15.4   n/a MPO453679  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1909-Mar-14 19:33 00:03 Jupiter 1.9205905359705 1.92059008728585 1.9205909846558 1.93648944870626 1.6935015663584 2418380.314569765 3.21319980450508 171.826598875544 16.3183374103584 -88.1698506056313 2457006.17196635 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 17:53:55 2020-Nov-12 17:53
1945-Jan-28 12:59 00:02 Jupiter 1.9238977339042 1.92389718120595 1.92389828660299 1.92154754505985 1.67684745272332 2431484.041273760 2.10167014091059 121.033052134562 18.1245904342143 88.9032315018711 2215650.46324007 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 17:53:55 2020-Nov-12 17:53
1980-Dec-15 02:50 00:01 Jupiter 1.930629454195 1.93062888959112 1.93063001879866 1.93065420095325 1.68818490685139 2444588.617908693 1.02095038648975 77.5669550986922 19.3256044784954 89.1788372796728 1939169.10655395 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 17:53:55 2020-Nov-12 17:53
2016-Nov-01 01:24 < 00:01 Jupiter 1.95219732798191 1.95219684072246 1.95219781524103 2.00143976736244 1.77143950683294 2457693.558324392 0.253359821068062 62.3204742207916 12.9122972092023 -84.245789949557 2165705.63961178 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 17:53:55 2020-Nov-12 17:53
2052-Sep-19 23:06 00:01 Jupiter 1.97451101262974 1.97451061420066 1.97451141105861 2.09062062540118 1.87422993767783 2470800.462653969 1.21144841065329 85.4191794552922 8.39228586342953 -86.6412059260049 2641049.77787943 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 17:53:55 2020-Nov-12 17:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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