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20842 (2000 UG75)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020842
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132848388146234 4.2319e-08  
a 3.221295511827342 2.5266e-08 au
q 2.856371568995712 1.3733e-07 au
i 22.13237545206447 6.5677e-06 deg
node 209.9106701273356 1.1571e-05 deg
peri 102.6597682961919 3.2124e-05 deg
M 258.7407561837954 3.2903e-05 deg
tp 2459794.486339498933
(2022-Aug-02.98633950)
0.00019602 TDB
period 2111.758632206926
5.78
2.4846e-05
6.802e-08
d
yr
n .1704740279071461 2.0057e-09 deg/d
Q 3.586219454658973 2.8129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      961  
   data-arc span      10544 days (28.87 yr)  
   first obs. used      1992-05-02  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:32:42  

Additional Information
 Earth MOID = 1.94113 au 
 Jupiter MOID = 1.81839 au 
 T_jup = 3.064 
[ 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 13.55   n/a E2021B10  
diameter diameter 9.494 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.664 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.065   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20842 (2000 UG75)          Discovered 2000-Oct-31 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 UG75 = 1999 RV198 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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