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JPL Small-Body Database Browser
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65873 (1997 WD7)
Classification: Main-belt Asteroid          SPK-ID: 2065873
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09263925748679809 3.0498e-08  
a 2.337296456908567 8.3963e-09 au
q 2.120771048614034 7.0677e-08 au
i 5.861416012936576 3.5267e-06 deg
node 298.2555461538461 3.7451e-05 deg
peri 170.5107078186506 4.4603e-05 deg
M 97.704164234465 2.3459e-05 deg
tp 2458646.274598435114
(2019-Jun-11.77459844)
8.4747e-05 TDB
period 1305.176146406009
3.57
7.0329e-06
1.926e-08
d
yr
n .2758248386559254 1.4863e-09 deg/d
Q 2.553821865203101 9.1741e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1352  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1997-11-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 12:55:03  

Additional Information
 Earth MOID = 1.13771 au 
 Jupiter MOID = 2.53408 au 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO459293  

65873 (1997 WD7)          Discovered 1997-Nov-24 by Spacewatch at Kitt Peak
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WD7 = 2000 RZ44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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