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52287 (1990 QP4)
Classification: Main-belt Asteroid          SPK-ID: 2052287
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 .1782352548460669 8.7451e-08  
a 2.376158305757624 1.504e-08 AU
q 1.952643124576315 2.0843e-07 AU
i 2.464938892155751 1.012e-05 deg
node 347.6453710437913 0.00012368 deg
peri 330.3722913965031 0.00012529 deg
M 241.2819002570785 2.1906e-05 deg
tp 2457441.690263140435
(2016-Feb-23.19026314)
8.2951e-05 JED
period 1337.862508534859
3.66
1.2702e-05
3.478e-08
d
yr
n .2690859469514913 2.5548e-09 deg/d
Q 2.799673486938933 1.7721e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8948 days (24.50 yr)  
   first obs. used      1990-08-16  
   last obs. used      2015-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:38:52  

Additional Information
 Earth MOID = .940744 AU 
 T_jup = 3.518 
[ 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 15.4 mag n/a MPO247752  

52287 (1990 QP4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QP4 = 1990 QY9 = 2000 GE118 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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