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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024801704533318 7.6826e-08  
a 3.161400403242582 3.7843e-08 AU
q 2.521279510722792 2.3966e-07 AU
i 1.347693263729762 7.8087e-06 deg
node 193.5729936469324 0.00027393 deg
peri 119.6877848717618 0.00027467 deg
M 281.0389106069489 2.671e-05 deg
tp 2457250.827339715388
(2015-Aug-16.32733972)
0.00015729 JED
period 2053.135836190813
5.62
3.6865e-05
1.009e-07
d
yr
n .1753415403181061 3.1483e-09 deg/d
Q 3.801521295762372 4.5505e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      845  
   data-arc span      9704 days (26.57 yr)  
   first obs. used      1987-09-13  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59966  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:56:06  

Additional Information
 Earth MOID = 1.50665 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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