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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3261440015584726 9.2808e-08  
a 2.675775377901146 3.4208e-08 AU
q 1.803087288880832 2.4796e-07 AU
i 8.503577950739205 9.9218e-06 deg
node 10.66096929606514 4.8831e-05 deg
peri 357.4651091406122 5.1224e-05 deg
M 231.5321272798085 1.8017e-05 deg
tp 2457571.012203404110
(2016-Jul-01.51220340)
8.965e-05 JED
period 1598.721835091141
4.38
3.0658e-05
8.394e-08
d
yr
n .2251798856425057 4.3182e-09 deg/d
Q 3.548463466921461 4.5365e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      10881 days (29.79 yr)  
   first obs. used      1985-09-06  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56355  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 15:19:39  

Additional Information
 Earth MOID = .802399 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
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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