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161996 (1985 RH3)
Classification: Main-belt Asteroid          SPK-ID: 2161996
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 .3262102110059547 1.2192e-07  
a 2.675527335298211 3.6583e-08 AU
q 1.802742998698382 3.2031e-07 AU
i 8.504231660986566 1.0977e-05 deg
node 10.66207466240969 5.0532e-05 deg
peri 357.4851497843064 5.3119e-05 deg
M 186.4586053241626 1.7398e-05 deg
tp 2457571.071776345329
(2016-Jul-01.57177635)
9.084e-05 JED
period 1598.499539562261
4.38
3.2785e-05
8.976e-08
d
yr
n .2252112003101257 4.6191e-09 deg/d
Q 3.548311671898039 4.8517e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      10463 days (28.65 yr)  
   first obs. used      1985-09-06  
   last obs. used      2014-04-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56736  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 10:54:55  

Additional Information
 Earth MOID = .800656 AU 
 T_jup = 3.286 
[ 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 15.8 mag n/a MPO254167  

161996 (1985 RH3)          Discovered 1985-Sep-06 by Debehogne, H. at La Silla (809)
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

[ show close-approach data ]
Alternate Designations
 1985 RH3 = 2004 BN16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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