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JPL Small-Body Database Browser
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56030 (1998 WH16)
Classification: Main-belt Asteroid          SPK-ID: 2056030
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07309958324724855 3.6814e-08  
a 2.300919735811667 8.071e-09 au
q 2.132723462038465 8.5029e-08 au
i 6.717832484478489 4.2547e-06 deg
node 71.96769717862985 3.3274e-05 deg
peri 12.54057188783906 4.5135e-05 deg
M 284.6335282301098 2.9447e-05 deg
tp 2458867.386320662805
(2020-Jan-18.88632066)
0.00010442 TDB
period 1274.825173347102
3.49
6.7076e-06
1.836e-08
d
yr
n .2823916624228608 1.4858e-09 deg/d
Q 2.469116009584869 8.661e-09 au
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      7686 days (21.04 yr)  
   first obs. used      1998-11-18  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57817  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:40:18  

Additional Information
 Earth MOID = 1.14907 au 
 Jupiter MOID = 2.6762 au 
 T_jup = 3.579 
[ 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 16.0   n/a MPO347898  

56030 (1998 WH16)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WH16 = 1998 XX61 = 2001 OQ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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