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91497 (1999 RF142)
Classification: Main-belt Asteroid          SPK-ID: 2091497
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 .07496061148134116 3.9397e-08  
a 2.997396882122446 2.4533e-08 au
q 2.772710178986282 1.1765e-07 au
i .4304267372678132 4.5932e-06 deg
node 119.1872527413782 0.00055879 deg
peri 220.1453644717802 0.00055961 deg
M 12.92424813544829 2.9115e-05 deg
tp 2458932.451651355564
(2020-Mar-23.95165136)
0.0001533 TDB
period 1895.460784663068
5.19
2.3271e-05
6.371e-08
d
yr
n .1899274323757601 2.3318e-09 deg/d
Q 3.22208358525861 2.6372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      15306 days (41.91 yr)  
   first obs. used      1978-09-02  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55863  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:17:39  

Additional Information
 Earth MOID = 1.7637 au 
 Jupiter MOID = 2.07416 au 
 T_jup = 3.250 
[ 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 14.9   n/a MPO432452  

91497 (1999 RF142)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RF142 = 1978 RB8 = 1997 EB4 = 2002 EE42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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