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523906 (1997 QR4)
Classification: Main-belt Asteroid          SPK-ID: 2523906
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630648800069619 1.0567e-07  
a 2.566073335085826 3.6822e-08 au
q 2.147636894610991 2.6717e-07 au
i 12.0651957682437 8.3169e-06 deg
node 308.0867306607432 3.7643e-05 deg
peri 39.85567388101658 4.6008e-05 deg
M 177.0630273773389 3.2761e-05 deg
tp 2458262.039266724615
(2018-May-23.53926672)
0.00013072 TDB
period 1501.419398034998
4.11
3.2317e-05
8.848e-08
d
yr
n .2397731110115899 5.161e-09 deg/d
Q 2.984509775560661 4.2826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      8239 days (22.56 yr)  
   first obs. used      1997-08-31  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:41:19  

Additional Information
 Earth MOID = 1.15348 au 
 Jupiter MOID = 2.44082 au 
 T_jup = 3.383 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO441664  

523906 (1997 QR4)          Discovered 1997-Aug-31 by ODAS at Caussols
Reference: Last Updated: 2019-05-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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