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JPL Small-Body Database Browser
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91543 (1999 RJ207)
Classification: Main-belt Asteroid          SPK-ID: 2091543
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04819003641279683 3.6449e-08  
a 2.9921325419584 2.1085e-08 au
q 2.84794156580951 1.149e-07 au
i 9.094246107707612 4.3342e-06 deg
node 256.868003214182 3.0777e-05 deg
peri 137.8466544200063 6.4515e-05 deg
M 334.5981635565365 5.7579e-05 deg
tp 2459133.892767423433
(2020-Oct-11.39276742)
0.00030276 TDB
period 1890.469469769098
5.18
1.9983e-05
5.471e-08
d
yr
n .1904288885680711 2.0129e-09 deg/d
Q 3.136323518107289 2.2101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53689  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:33:10  

Additional Information
 Earth MOID = 1.86351 au 
 Jupiter MOID = 2.16971 au 
 T_jup = 3.235 
[ 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 14.1   n/a MPO436411  

91543 (1999 RJ207)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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