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175810 (1999 RA187)
Classification: Main-belt Asteroid          SPK-ID: 2175810
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1664079603185294 5.0227e-08  
a 2.267238693849839 1.0755e-08 au
q 1.889952127251041 1.1628e-07 au
i 4.060500845925161 5.5917e-06 deg
node 344.4790994083714 6.5098e-05 deg
peri 328.7808214138383 6.6845e-05 deg
M 109.4205656552907 1.4539e-05 deg
tp 2458821.498656964689
(2019-Dec-03.99865696)		 4.9838e-05 TDB
period 1246.936375037053
3.41		 8.8722e-06
2.429e-08		 d
yr
n .2887075934321849 2.0542e-09 deg/d
Q 2.644525260448638 1.2544e-08 au
   Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7795 days (21.34 yr)  
   first obs. used      1999-09-05  
   last obs. used      2021-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5856  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:33:50  

Additional Information
 Earth MOID = .875517 au 
 Jupiter MOID = 2.62601 au 
 T_jup = 3.594 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO436871  

175810 (1999 RA187)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

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Alternate Designations
 1999 RA187 = 1999 RO256 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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