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90798 (1994 US5)
Classification: Main-belt Asteroid          SPK-ID: 2090798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1325072044060172 4.2387e-08  
a 2.267641661527597 8.9991e-09 au
q 1.96716280436396 9.4773e-08 au
i 7.259927951571984 4.6221e-06 deg
node 20.70452888541264 3.1147e-05 deg
peri 356.7976536727598 3.4773e-05 deg
M 188.7212644148838 1.6785e-05 deg
tp 2459593.918409669783
(2022-Jan-14.41840967)
5.9773e-05 TDB
period 1247.268826169954
3.41
7.4247e-06
2.033e-08
d
yr
n .2886306403612032 1.7181e-09 deg/d
Q 2.568120518691235 1.0192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      9312 days (25.49 yr)  
   first obs. used      1994-10-28  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:35:08  

Additional Information
 Earth MOID = .968986 au 
 Jupiter MOID = 2.89384 au 
 T_jup = 3.593 
[ 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 16.8   n/a MPO468892  

90798 (1994 US5)          Discovered 1994-Oct-28 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1994 US5 = 2001 WG91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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