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9163 (1987 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2009163
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2025347829064318 6.524e-08  
a 3.162062952714111 3.7456e-08 AU
q 2.521635219049688 2.0894e-07 AU
i 1.347597146335375 7.5281e-06 deg
node 193.5688269547228 0.00024838 deg
peri 119.6395533286081 0.0002492 deg
M 316.1547310152108 2.4222e-05 deg
tp 2457250.634981787803
(2015-Aug-16.13498179)
0.00014045 JED
period 2053.7812979286
5.62
3.6492e-05
9.991e-08
d
yr
n .1752864340341829 3.1145e-09 deg/d
Q 3.802490686378535 4.5042e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      9783 days (26.78 yr)  
   first obs. used      1987-09-13  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56273  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:14:07  

Additional Information
 Earth MOID = 1.50891 AU 
 T_jup = 3.172 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO263431  

9163 (1987 RB1)          Discovered 1987-Sep-13 by Debehogne, H. at La Silla (809)
Reference: 19980910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 RB1 = 1993 TE43 = 1996 DV4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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