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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819263692320058 3.7416e-08  
a 2.275401317041325 9.9024e-09 au
q 1.861445816886273 8.7355e-08 au
i 5.957102330143486 3.933e-06 deg
node 93.16933073158556 4.0909e-05 deg
peri 217.2599205995842 4.2288e-05 deg
M 292.6611819548472 1.0834e-05 deg
tp 2458835.003010799347
(2019-Dec-17.50301080)
3.7947e-05 TDB
period 1253.676353973986
3.43
8.1839e-06
2.241e-08
d
yr
n .2871554519305147 1.8745e-09 deg/d
Q 2.689356817196378 1.1704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      9258 days (25.35 yr)  
   first obs. used      1994-01-04  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61184  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:01  

Additional Information
 Earth MOID = .850069 au 
 Jupiter MOID = 2.56618 au 
 T_jup = 3.580 
[ 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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