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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07719617327706566 4.4951e-08  
a 2.988998789859766 2.3242e-08 au
q 2.758259521352812 1.3044e-07 au
i .5443271952628211 4.8892e-06 deg
node 261.0693003707017 0.00053246 deg
peri 43.53894007369932 0.00053383 deg
M 115.6525277742723 4.0448e-05 deg
tp 2458394.127266489040
(2018-Oct-02.62726649)
0.00020978 TDB
period 1887.500327619355
5.17
2.2016e-05
6.028e-08
d
yr
n .1907284437158518 2.2246e-09 deg/d
Q 3.21973805836672 2.5036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:34  

Additional Information
 Earth MOID = 1.74309 au 
 Jupiter MOID = 1.95053 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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