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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1132848416720749 4.0876e-08  
a 3.221295513318413 2.4541e-08 au
q 2.856371561113171 1.3402e-07 au
i 22.13237541677286 6.552e-06 deg
node 209.9106704410842 1.1294e-05 deg
peri 102.6597694470825 3.1534e-05 deg
M 258.7407542689723 3.2043e-05 deg
tp 2459794.486351143694
(2022-Aug-02.98635114)
0.00019067 TDB
period 2111.758633673159
5.78
2.4132e-05
6.607e-08
d
yr
n .1704740277887828 1.9481e-09 deg/d
Q 3.586219465523654 2.7321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      10551 days (28.89 yr)  
   first obs. used      1992-05-02  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53502  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:07:46  

Additional Information
 Earth MOID = 1.94113 au 
 Jupiter MOID = 1.81839 au 
 T_jup = 3.064 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457273.5 (2015-Sep-08.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117284343870867 4.0839e-08  
q 2.862020916226016 1.338e-07 au
tp 2457680.307941204235
(2016-Oct-18.80794120)
0.00018461 TDB
node 209.9471849086445 1.1293e-05 deg
peri 102.5072091342716 3.193e-05 deg
i 22.12964840451765 6.5512e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      10551 days (28.89 yr)  
   first obs. used      1992-05-02  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53502  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:07:46  

Additional Information
 Jupiter MOID = 1.81839 au 
 T_jup = 3.064 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.667861986709523E-15 -5.392093254485889E-15 2.433308053940059E-12 9.449023311680677E-15 3.950961538469438E-13 5.322610054891193E-16
q -5.392093254485889E-15 1.790250076199358E-14 -6.62809081730249E-12 -3.507438313418645E-14 -1.090716088722999E-12 7.751574153612621E-15
tp 2.433308053940059E-12 -6.62809081730249E-12 3.408177427656364E-8 6.04336324291339E-11 5.529621595094705E-9 2.699638293609822E-12
node 9.449023311680677E-15 -3.507438313418645E-14 6.04336324291339E-11 1.275362739341148E-10 -1.079300893948013E-10 -1.391181350954688E-11
peri 3.950961538469438E-13 -1.090716088722999E-12 5.529621595094705E-9 -1.079300893948013E-10 1.019528205749024E-9 1.343531018277841E-11
i 5.322610054891193E-16 7.751574153612621E-15 2.699638293609822E-12 -1.391181350954688E-11 1.343531018277841E-11 4.291813313692984E-11

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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