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42488 (1991 RN17)
Classification: Main-belt Asteroid          SPK-ID: 2042488
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2296569966365688 8.6592e-08  
a 2.343528838747289 1.8577e-08 AU
q 1.805321044109401 2.0856e-07 AU
i 9.613205529941306 8.2135e-06 deg
node 177.2407617055522 3.3761e-05 deg
peri 198.8099449029864 3.6472e-05 deg
M 156.0181541526723 1.9532e-05 deg
tp 2456432.593924468843
(2013-May-20.09392447)
6.6042e-05 JED
period 1310.399987114029
3.59
1.5581e-05
4.266e-08
d
yr
n .2747252774268177 3.2667e-09 deg/d
Q 2.881736633385178 2.2844e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      8653 days (23.69 yr)  
   first obs. used      1991-09-11  
   last obs. used      2015-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55411  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:29:39  

Additional Information
 Earth MOID = .808582 AU 
 T_jup = 3.508 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO337599  

42488 (1991 RN17)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RN17 = 2000 CP45 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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