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109768 (2001 RJ78)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109768
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07628349832670714 6.7381e-08  
a 3.210305107205728 2.7884e-08 au
q 2.965411802931981 2.2432e-07 au
i 16.26681307298828 7.9286e-06 deg
node 16.63156829961001 1.5713e-05 deg
peri 319.4518658518604 4.2837e-05 deg
M 61.41441259975028 4.0137e-05 deg
tp 2458242.085399421853
(2018-May-03.58539942)
0.00023521 TDB
period 2100.960519626589
5.75
2.7373e-05
7.494e-08
d
yr
n .1713501975106053 2.2325e-09 deg/d
Q 3.455198411479476 3.0011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      8526 days (23.34 yr)  
   first obs. used      1995-09-20  
   last obs. used      2019-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53118  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:33:21  

Additional Information
 Earth MOID = 1.97666 au 
 Jupiter MOID = 1.93652 au 
 T_jup = 3.124 
[ 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 14.2   n/a MPO325227  
diameter diameter 7.968 km 0.312 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109768 (2001 RJ78)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 RJ78 = 1995 SH48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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