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85812 (1998 WR22)
Classification: Main-belt Asteroid          SPK-ID: 2085812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1918412176535997 3.7997e-08  
a 2.847526937449759 1.5429e-08 au
q 2.301253902467971 1.1278e-07 au
i 1.816107556292987 4.6355e-06 deg
node 190.065358681797 0.00011789 deg
peri 235.6659015891668 0.00011847 deg
M 251.0150173503042 1.3251e-05 deg
tp 2459927.830011598671
(2022-Dec-14.33001160)
6.7308e-05 TDB
period 1755.093220414946
4.81
1.4265e-05
3.906e-08
d
yr
n .2051173099027113 1.6671e-09 deg/d
Q 3.393799972431546 1.8389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      8295 days (22.71 yr)  
   first obs. used      1998-11-18  
   last obs. used      2021-08-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56178  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:10:30  

Additional Information
 Earth MOID = 1.31521 au 
 Jupiter MOID = 1.92669 au 
 T_jup = 3.279 
[ 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 15.30   n/a MPO637176  

85812 (1998 WR22)          Discovered 1998-Nov-18 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 WR22 = 2000 GE11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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