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120978 (1998 WU35)
Classification: Main-belt Asteroid          SPK-ID: 2120978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1463398172054351 5.5934e-08  
a 2.333532400184393 9.4324e-09 au
q 1.992043695298449 1.3257e-07 au
i 6.755059416434755 4.7955e-06 deg
node 42.76086303789427 4.6558e-05 deg
peri 286.0171941061012 4.9698e-05 deg
M 135.0080408481815 1.5498e-05 deg
tp 2458712.211704559527
(2019-Aug-16.71170456)
5.5765e-05 TDB
period 1302.024570197576
3.56
7.8944e-06
2.161e-08
d
yr
n .2764924781299417 1.6764e-09 deg/d
Q 2.675021105070337 1.0813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      8116 days (22.22 yr)  
   first obs. used      1998-11-19  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:09:01  

Additional Information
 Earth MOID = .992231 au 
 Jupiter MOID = 2.67172 au 
 T_jup = 3.546 
[ 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 16.9   n/a MPO493691  

120978 (1998 WU35)          Discovered 1998-Nov-19 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 WU35 = 2001 ON26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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