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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2025347778167168 6.3715e-08  
a 3.162062948646713 3.3534e-08 AU
q 2.521635231900079 2.0658e-07 AU
i 1.347596127547091 7.2354e-06 deg
node 193.5688240169747 0.00024811 deg
peri 119.6395543479774 0.00024886 deg
M 316.1547342038784 2.0042e-05 deg
tp 2457250.634963113992
(2015-Aug-16.13496311)
0.00011573 JED
period 2053.781293965896
5.62
3.2671e-05
8.945e-08
d
yr
n .1752864343723923 2.7884e-09 deg/d
Q 3.802490665393347 4.0326e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      10140 days (27.76 yr)  
   first obs. used      1987-09-13  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55696  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:01:27  

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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