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20022 (1991 VO7)
Classification: Main-belt Asteroid          SPK-ID: 2020022
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054568901179538 3.9222e-08  
a 2.633845171386785 1.3104e-08 au
q 2.356088050560146 9.9748e-08 au
i 2.06960532141025 3.9844e-06 deg
node 131.3556557058314 0.00010708 deg
peri 352.5001489228885 0.00010985 deg
M 221.1434065854068 2.8035e-05 deg
tp 2459802.709767310027
(2022-Aug-11.20976731)
0.00012441 TDB
period 1561.290759771911
4.27
1.1651e-05
3.19e-08
d
yr
n .2305784478303019 1.7207e-09 deg/d
Q 2.911602292213424 1.4485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      659  
   data-arc span      10623 days (29.08 yr)  
   first obs. used      1991-11-03  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57963  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:11:32  

Additional Information
 Earth MOID = 1.37158 au 
 Jupiter MOID = 2.13749 au 
 T_jup = 3.390 
[ 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 15.71   n/a E2021B10  
diameter diameter 2.266 km 0.499 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.137   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20022 (1991 VO7)          Discovered 1991-Nov-03 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 VO7 = 1995 UH25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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