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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07651200017022179 6.2928e-08  
a 3.210812957571139 2.695e-08 au
q 2.965147236014906 2.0794e-07 au
i 16.26466273321222 7.4214e-06 deg
node 16.61542453280153 1.5547e-05 deg
peri 319.6047163434214 4.1064e-05 deg
M 129.7788060913764 3.8543e-05 deg
tp 2458242.930971781981
(2018-May-04.43097178)
0.00022629 TDB
period 2101.459077736184
5.75
2.6458e-05
7.244e-08
d
yr
n .1713095457408637 2.1568e-09 deg/d
Q 3.456478679127373 2.9012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      8900 days (24.37 yr)  
   first obs. used      1995-09-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:32:36  

Additional Information
 Earth MOID = 1.97718 au 
 Jupiter MOID = 1.93604 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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