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100120 (1993 OW4)
Classification: Main-belt Asteroid          SPK-ID: 2100120
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637695364801924 4.9388e-08  
a 2.622087795042793 1.5506e-08 au
q 2.192669692238265 1.2685e-07 au
i 16.45031743432119 4.4974e-06 deg
node 113.7427899226007 2.227e-05 deg
peri 233.6730676457357 2.9594e-05 deg
M 82.72117089835672 1.826e-05 deg
tp 2458644.144519141000
(2019-Jun-09.64451914)
7.8313e-05 TDB
period 1550.848128913373
4.25
1.3756e-05
3.766e-08
d
yr
n .2321310470627707 2.059e-09 deg/d
Q 3.051505897847321 1.8045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      669  
   data-arc span      9960 days (27.27 yr)  
   first obs. used      1993-07-13  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56085  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:55  

Additional Information
 Earth MOID = 1.22187 au 
 Jupiter MOID = 2.39022 au 
 T_jup = 3.328 
[ 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 15.4   n/a MPO439688  
diameter diameter 5.202 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100120 (1993 OW4)          Discovered 1993-Jul-20 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1993 OW4 = 2004 CH61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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