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90804 (1994 WL8)
Classification: Main-belt Asteroid          SPK-ID: 2090804
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009991204835081 6.4954e-08  
a 3.00035634336197 2.5701e-08 au
q 2.697322991545297 2.0182e-07 au
i 10.0205512751798 6.029e-06 deg
node 106.0582381936851 3.3522e-05 deg
peri 228.8999514261028 4.0932e-05 deg
M 41.35009715525739 2.3158e-05 deg
tp 2458782.462237395817
(2019-Oct-25.96223740)
0.00012217 TDB
period 1898.268684660775
5.20
2.439e-05
6.678e-08
d
yr
n .1896464936228628 2.4367e-09 deg/d
Q 3.303389695178644 2.8296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      422  
   data-arc span      9105 days (24.93 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57191  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:45:27  

Additional Information
 Earth MOID = 1.69876 au 
 Jupiter MOID = 2.0259 au 
 T_jup = 3.222 
[ 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 15.0   n/a MPO449558  

90804 (1994 WL8)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1994 WL8 = 2001 BC19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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