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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027234911138388 6.1983e-08  
a 3.162561482308492 2.7097e-08 au
q 2.521435977752757 2.04e-07 au
i 1.34793779435061 5.8462e-06 deg
node 193.5556258513846 0.00024214 deg
peri 119.5528969777122 0.00024277 deg
M 61.37396735398203 1.2024e-05 deg
tp 2457250.281898083453
(2015-Aug-15.78189808)
6.9499e-05 JED
period 2054.267014592413
5.62
2.6402e-05
7.228e-08
d
yr
n .1752449888173021 2.2523e-09 deg/d
Q 3.803686986864225 3.259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      10314 days (28.24 yr)  
   first obs. used      1987-09-13  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55102  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:09:37  

Additional Information
 Earth MOID = 1.50728 au 
 Jupiter MOID = 1.48607 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 13.7 mag n/a MPO319200  

9163 (1987 RB1)          Discovered 1987-Sep-13 by Debehogne, H. at La Silla
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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