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JPL Small-Body Database Browser
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12763 (1993 UQ2)
Classification: Main-belt Asteroid          SPK-ID: 2012763
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09494250156953288 5.2555e-08  
a 3.057325998900829 1.5633e-08 au
q 2.767055820451613 1.6408e-07 au
i 9.736150187270294 5.5381e-06 deg
node 179.9924639919301 2.1102e-05 deg
peri 167.1312850959705 2.8714e-05 deg
M 29.63457033385204 1.8603e-05 deg
tp 2458839.766210009335
(2019-Dec-22.26621001)
0.00010083 TDB
period 1952.5899564179
5.35
1.4976e-05
4.1e-08
d
yr
n .1843705068832955 1.4141e-09 deg/d
Q 3.347596177350044 1.7118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1636  
   data-arc span      13626 days (37.31 yr)  
   first obs. used      1982-09-16  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:54:18  

Additional Information
 Earth MOID = 1.76167 au 
 Jupiter MOID = 2.09903 au 
 T_jup = 3.206 
[ 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 13.2   n/a MPO309251  
diameter diameter 8.636 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12763 (1993 UQ2)          Discovered 1993-Oct-19 by Helin, E. F. at Palomar
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 UQ2 = 1982 SH12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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