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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2025347809962818 6.516e-08  
a 3.162062951891884 3.7423e-08 AU
q 2.521635224434005 2.0874e-07 AU
i 1.347597153854381 7.5275e-06 deg
node 193.568823308163 0.00024816 deg
peri 119.6395567580575 0.00024898 deg
M 316.1547315490107 2.4204e-05 deg
tp 2457250.634978644939
(2015-Aug-16.13497865)
0.00014035 JED
period 2053.781297127536
5.62
3.646e-05
9.982e-08
d
yr
n .1752864341025522 3.1118e-09 deg/d
Q 3.802490679349763 4.5003e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      898  
   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      .55884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:28:53  

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 13.7 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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