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JPL Small-Body Database Browser
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85176 (1990 RP2)
Classification: Main-belt Asteroid          SPK-ID: 2085176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1874159125887082 2.8637e-08  
a 2.289649788895744 8.4497e-09 au
q 1.860532984201305 6.6643e-08 au
i 2.802801847793154 4.1031e-06 deg
node 242.1148401021111 7.5002e-05 deg
peri 116.8907710405897 7.607e-05 deg
M 90.8306331822486 1.2183e-05 deg
tp 2458281.212542714672
(2018-Jun-11.71254271)
4.2362e-05 TDB
period 1265.470476156295
3.46
7.0051e-06
1.918e-08
d
yr
n .2844791773360482 1.5748e-09 deg/d
Q 2.718766593590183 1.0033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      10374 days (28.40 yr)  
   first obs. used      1990-09-15  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50721  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:26:35  

Additional Information
 Earth MOID = .858201 au 
 Jupiter MOID = 2.73753 au 
 T_jup = 3.574 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO453282  

85176 (1990 RP2)          Discovered 1990-Sep-15 by Holt, H. E. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1990 RP2 = 2001 XW190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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