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90788 (1994 PQ20)
Classification: Main-belt Asteroid          SPK-ID: 2090788
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1652206034129904 8.0307e-08  
a 2.240173617583853 1.3724e-08 au
q 1.870050780736788 1.8509e-07 au
i 7.934560548372442 7.4398e-06 deg
node 338.0043577920021 3.0971e-05 deg
peri 339.848831707237 3.4442e-05 deg
M 259.4841415448745 1.6061e-05 deg
tp 2459342.442458287158
(2021-May-07.94245829)
5.6739e-05 TDB
period 1224.675258962578
3.35
1.1254e-05
3.081e-08
d
yr
n .2939554770665945 2.7014e-09 deg/d
Q 2.610296454430919 1.5992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      9390 days (25.71 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:34:42  

Additional Information
 Earth MOID = .859422 au 
 Jupiter MOID = 2.69514 au 
 T_jup = 3.605 
[ 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 16.9   n/a MPO468892  

90788 (1994 PQ20)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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