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101076 (1998 RM21)
Classification: Main-belt Asteroid          SPK-ID: 2101076
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0771100710761624 4.4966e-08  
a 2.989614353999482 2.2509e-08 au
q 2.759084978672266 1.3051e-07 au
i .5441951034523246 4.7546e-06 deg
node 261.0690520059734 0.00048253 deg
peri 43.69669211325639 0.0004839 deg
M 153.6227535291439 3.9468e-05 deg
tp 2458394.798399686187
(2018-Oct-03.29839969)
0.0002032 TDB
period 1888.083434580195
5.17
2.1323e-05
5.838e-08
d
yr
n .1906695400248792 2.1534e-09 deg/d
Q 3.220143729326697 2.4245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      8181 days (22.40 yr)  
   first obs. used      1998-08-26  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:05  

Additional Information
 Earth MOID = 1.74194 au 
 Jupiter MOID = 1.94964 au 
 T_jup = 3.252 
[ 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 15.8   n/a MPO453464  

101076 (1998 RM21)          Discovered 1998-Sep-15 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 RM21 = 2002 JV140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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