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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .326144024177706 1.2198e-07  
a 2.675775381307488 3.6529e-08 AU
q 1.803087230652228 3.2057e-07 AU
i 8.503581166411808 1.0976e-05 deg
node 10.66096019184965 5.0535e-05 deg
peri 357.4651163289604 5.3122e-05 deg
M 231.5321266985112 1.8178e-05 deg
tp 2457571.012207075009
(2016-Jul-01.51220708)
9.0862e-05 JED
period 1598.721838143972
4.38
3.2738e-05
8.963e-08
d
yr
n .2251798852125146 4.6111e-09 deg/d
Q 3.548463531962748 4.8442e-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 = .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 (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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