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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627474418026818 1.0801e-07  
a 2.566648668597974 3.8885e-08 au
q 2.148933163777394 2.7572e-07 au
i 12.06321440233865 8.5183e-06 deg
node 308.0868791437843 5.0338e-05 deg
peri 39.87927165919196 6.0039e-05 deg
M 81.16694730351793 3.6313e-05 deg
tp 2458261.870510320644
(2018-May-23.37051032)
0.0001505 TDB
period 1501.924371120022
4.11
3.4131e-05
9.345e-08
d
yr
n .2396924951231327 5.447e-09 deg/d
Q 2.984364173418553 4.5213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      66  
   data-arc span      7731 days (21.17 yr)  
   first obs. used      1997-08-31  
   last obs. used      2018-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:46:49  

Additional Information
 Earth MOID = 1.15388 au 
 Jupiter MOID = 2.43771 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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