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101984 (1999 RB61)
Classification: Main-belt Asteroid          SPK-ID: 2101984
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08502090963046575 6.2866e-08  
a 2.774341236896523 1.6944e-08 au
q 2.538464221310269 1.7134e-07 au
i 3.30472816344962 4.6967e-06 deg
node 121.610557260708 9.6887e-05 deg
peri 219.9651156651302 0.00010106 deg
M 210.0439209774151 3.1235e-05 deg
tp 2459903.572025226978
(2022-Nov-20.07202523)
0.00014831 TDB
period 1687.867079023798
4.62
1.5463e-05
4.234e-08
d
yr
n .2132869373862136 1.9539e-09 deg/d
Q 3.010218252482776 1.8384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      7860 days (21.52 yr)  
   first obs. used      1999-09-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56824  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:45  

Additional Information
 Earth MOID = 1.52906 au 
 Jupiter MOID = 2.30743 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.57   n/a E2021B55  

101984 (1999 RB61)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 RB61 = 2002 CN103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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