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JPL Small-Body Database Browser
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71930 (2000 WM61)
Classification: Main-belt Asteroid          SPK-ID: 2071930
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1592943356393697 2.8123e-08  
a 2.380733878757869 9.1713e-09 au
q 2.001496457206994 6.5904e-08 au
i 2.896318739866192 3.8398e-06 deg
node 239.1620427775528 7.8118e-05 deg
peri 228.2632837388128 7.9675e-05 deg
M 102.0223446068587 1.5958e-05 deg
tp 2458620.260260004731
(2019-May-16.76026000)
5.846e-05 TDB
period 1341.728686257758
3.67
7.7531e-06
2.123e-08
d
yr
n .2683105785001013 1.5504e-09 deg/d
Q 2.759971300308743 1.0632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      8011 days (21.93 yr)  
   first obs. used      1998-05-23  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51645  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:47:46  

Additional Information
 Earth MOID = 1.01967 au 
 Jupiter MOID = 2.36915 au 
 T_jup = 3.519 
[ 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 15.4   n/a MPO468661  

71930 (2000 WM61)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2193-Aug-27 20:42 00:02 Iris 0.0333120953566883 0.0332886447108773 0.0333355561002822 4.46511196772218 4.46511192907314 2522276.362231574 1.73931341890863 1484.69027518975 48.0252660841833 -38.0703950385403 64010.3415264569 T 24 CATAB v2.0f-lin.ifort 2020-May-20 13:48:04 2020-May-20 13:48
2197-May-04 15:20 00:02 Iris 0.024914477798998 0.0248959725698324 0.0249330063639087 4.15419862976841 4.15419857422481 2523622.138864827 1.82599788032348 1516.47254618439 48.0025202776394 52.5531954002391 61629.0260634288 T 24 CATAB v2.0f-lin.ifort 2020-May-20 13:48:04 2020-May-20 13:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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