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35739 (1999 GR21)
Classification: Main-belt Asteroid          SPK-ID: 2035739
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1125224323878968 3.331e-08  
a 2.242255750130631 7.782e-09 au
q 1.989951679090184 7.6132e-08 au
i 7.951511735970811 3.4038e-06 deg
node 156.4367226951074 3.0315e-05 deg
peri 127.7067312473142 3.5016e-05 deg
M 283.6022659712186 1.7732e-05 deg
tp 2458860.758021082729
(2020-Jan-12.25802108)
6.0613e-05 TDB
period 1226.383069875941
3.36
6.3844e-06
1.748e-08
d
yr
n .2935461266897765 1.5282e-09 deg/d
Q 2.494559821171078 8.6576e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1398  
   data-arc span      9926 days (27.18 yr)  
   first obs. used      1992-03-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48857  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:55:22  

Additional Information
 Earth MOID = .984447 au 
 Jupiter MOID = 2.65178 au 
 T_jup = 3.613 
[ 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 15.0   n/a MPO333137  
diameter diameter 3.180 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.133   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35739 (1999 GR21)          Discovered 1999-Apr-15 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 GR21 = 2000 RR66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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