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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .084813238782342 6.7565e-08  
a 2.774891044065487 1.764e-08 au
q 2.539543547350179 1.8301e-07 au
i 3.304668251474128 4.8226e-06 deg
node 121.6099365274344 9.691e-05 deg
peri 219.9121127258822 0.00010112 deg
M 167.452951295071 3.1427e-05 deg
tp 2458215.160149906829
(2018-Apr-06.66014991)
0.00014549 TDB
period 1688.368845380055
4.62
1.61e-05
4.408e-08
d
yr
n .2132235506388791 2.0332e-09 deg/d
Q 3.010238540780796 1.9136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56982  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 18:04:13  

Additional Information
 Earth MOID = 1.53199 au 
 Jupiter MOID = 2.30745 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 15.5   n/a MPO351573  

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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