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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026807751900522 6.2005e-08  
a 3.162766030416833 2.7007e-08 au
q 2.521734159627185 2.0401e-07 au
i 1.34773697423156 5.8463e-06 deg
node 193.555089093702 0.00024217 deg
peri 119.5885768310073 0.0002428 deg
M 26.30270925128714 1.2107e-05 deg
tp 2457250.394360577828
(2015-Aug-15.89436058)
6.9505e-05 JED
period 2054.466316595791
5.62
2.6315e-05
7.205e-08
d
yr
n .1752279884522578 2.2444e-09 deg/d
Q 3.80379790120648 3.2481e-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 = 1.50613 au 
 Jupiter MOID = 1.48498 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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