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101998 (1999 RJ76)
Classification: Main-belt Asteroid          SPK-ID: 2101998
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254437772948544 3.0938e-08  
a 2.245528388896459 8.588e-09 au
q 1.963840825770458 6.8197e-08 au
i 7.080201123441521 5.0146e-06 deg
node 172.2691264950647 2.7965e-05 deg
peri 74.53562522078886 3.4998e-05 deg
M 144.9961325771025 2.0914e-05 deg
tp 2458505.471538037125
(2019-Jan-21.97153804)
7.0702e-05 TDB
period 1229.068963007485
3.37
7.0509e-06
1.93e-08
d
yr
n .2929046382548736 1.6803e-09 deg/d
Q 2.52721595202246 9.6653e-09 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      7929 days (21.71 yr)  
   first obs. used      1998-03-03  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5778  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:16  

Additional Information
 Earth MOID = .965114 au 
 Jupiter MOID = 2.50209 au 
 T_jup = 3.611 
[ 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 15.9   n/a MPO436477  

101998 (1999 RJ76)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RJ76 = 2002 LB42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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