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101203 (1998 SH39)
Classification: Main-belt Asteroid          SPK-ID: 2101203
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06748672281716843 3.6747e-08  
a 2.560831994135405 1.0439e-08 au
q 2.388009835165853 9.3431e-08 au
i 1.935989861163075 3.6186e-06 deg
node 358.9717242913125 0.00011851 deg
peri 68.58690897730047 0.00012158 deg
M 89.84750122428983 2.6884e-05 deg
tp 2458826.928651535493
(2019-Dec-09.42865154)
0.00011192 TDB
period 1496.821654633452
4.10
9.1528e-06
2.506e-08
d
yr
n .2405096150804676 1.4707e-09 deg/d
Q 2.733654153104959 1.1144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      11110 days (30.42 yr)  
   first obs. used      1990-10-14  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55096  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:41  

Additional Information
 Earth MOID = 1.402 au 
 Jupiter MOID = 2.44099 au 
 T_jup = 3.431 
[ 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 15.93   n/a E2021B55  

101203 (1998 SH39)          Discovered 1998-Sep-23 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SH39 = 2002 QF18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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