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74776 (1999 RJ237)
Classification: Main-belt Asteroid          SPK-ID: 2074776
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 .1815928489710119 3.5949e-08  
a 2.274992346540741 9.7343e-09 au
q 1.86187000494516 8.4446e-08 au
i 5.957313365659547 3.8252e-06 deg
node 93.16731545753836 3.8785e-05 deg
peri 217.1780422250376 4.0267e-05 deg
M 47.58842081210021 1.0879e-05 deg
tp 2458834.821127903028
(2019-Dec-17.32112790)
3.7706e-05 TDB
period 1253.338373853838
3.43
8.0442e-06
2.202e-08
d
yr
n .2872328873910172 1.8435e-09 deg/d
Q 2.688114688136322 1.1502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      754  
   data-arc span      9312 days (25.49 yr)  
   first obs. used      1994-01-04  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:21:53  

Additional Information
 Earth MOID = .851258 au 
 Jupiter MOID = 2.56886 au 
 T_jup = 3.581 
[ 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 15.9   n/a MPO436306  

74776 (1999 RJ237)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RJ237 = 1994 AC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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