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37636 (1993 UQ4)
Classification: Main-belt Asteroid          SPK-ID: 2037636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901439305429389 3.2946e-08  
a 2.260119973150186 7.5457e-09 au
q 1.830371877956808 7.447e-08 au
i 3.871363027329823 3.7397e-06 deg
node 132.0180187139995 5.7914e-05 deg
peri 182.7496751986842 5.8865e-05 deg
M 355.8283813522549 1.2173e-05 deg
tp 2459014.881287423223
(2020-Jun-14.38128742)
4.2001e-05 TDB
period 1241.068254203615
3.40
6.2152e-06
1.702e-08
d
yr
n .2900726843835108 1.4527e-09 deg/d
Q 2.689868068343564 8.9805e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1706  
   data-arc span      12336 days (33.77 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:48:24  

Additional Information
 Earth MOID = .816567 au 
 Jupiter MOID = 2.59161 au 
 T_jup = 3.593 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456662.5 (2014-Jan-05.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902208834670257 3.2987e-08  
q 1.829651335844661 7.4564e-08 au
tp 2456531.780171300353
(2013-Aug-27.28017130)
3.7512e-05 TDB
node 132.0502836399122 5.7921e-05 deg
peri 182.4441007947285 5.8868e-05 deg
i 3.87044759625046 3.7406e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1706  
   data-arc span      12336 days (33.77 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:48:24  

Additional Information
 Jupiter MOID = 2.59161 au 
 T_jup = 3.593 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.088118958612399E-15 -2.451517197134987E-15 -9.951306318339102E-15 -7.884706712170472E-15 1.225840222062061E-14 3.731903352195428E-16
q -2.451517197134987E-15 5.55983998000191E-15 7.380143914537038E-14 1.656113280655555E-14 -1.293490413436817E-14 -8.113511107278013E-16
tp -9.951306318339102E-15 7.380143914537038E-14 1.407135941406627E-9 -1.189019839380314E-11 4.093735828935812E-10 3.147359351435107E-14
node -7.884706712170472E-15 1.656113280655555E-14 -1.189019839380314E-11 3.354803776126915E-9 -3.350030597140582E-9 5.266526632253605E-12
peri 1.225840222062061E-14 -1.293490413436817E-14 4.093735828935812E-10 -3.350030597140582E-9 3.465393788135392E-9 -5.233109740960283E-12
i 3.731903352195428E-16 -8.113511107278013E-16 3.147359351435107E-14 5.266526632253605E-12 -5.233109740960283E-12 1.399211341862399E-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 14.8   n/a MPO474232  
diameter diameter 2.538 km 0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.386   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37636 (1993 UQ4)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 UQ4 = 1986 RD18 = 1993 VK5 = 1999 GT8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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