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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1784266496445076 6.6803e-08  
a 2.37628718669069 1.3945e-08 au
q 1.952294225376298 1.633e-07 au
i 2.464883294024072 8.1299e-06 deg
node 347.6441492743556 0.00011887 deg
peri 330.3675448805745 0.00012033 deg
M 348.9370718232805 1.9478e-05 deg
tp 2457441.616336177645
(2016-Feb-23.11633618)
7.2486e-05 JED
period 1337.971356905371
3.66
1.1777e-05
3.224e-08
d
yr
n .2690640559246749 2.3684e-09 deg/d
Q 2.800280148005082 1.6433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      681  
   data-arc span      9131 days (25.00 yr)  
   first obs. used      1990-08-16  
   last obs. used      2015-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53251  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:58:41  

Additional Information
 Earth MOID = .937573 au 
 Jupiter MOID = 2.48338 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 15.5 mag n/a MPO337676  

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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