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52307 (1991 TH1)
Classification: Main-belt Asteroid          SPK-ID: 2052307
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .222680547716796 9.9202e-08  
a 2.297595720780096 7.203e-09 au
q 1.785965847245017 2.2587e-07 au
i 22.95194157067549 7.2546e-06 deg
node 18.18642293417427 1.0389e-05 deg
peri 3.207195373843023 1.5676e-05 deg
M 324.8955143220749 9.7851e-06 deg
tp 2458724.542057450044
(2019-Aug-29.04205745)
3.4777e-05 TDB
period 1272.063664219881
3.48
5.9819e-06
1.638e-08
d
yr
n .2830047034012071 1.3308e-09 deg/d
Q 2.809225594315174 8.807e-09 au
  Orbit Determination Parameters
   # obs. used (total)      893  
   data-arc span      15448 days (42.29 yr)  
   first obs. used      1977-08-21  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49851  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:00:07  

Additional Information
 Earth MOID = .788091 au 
 Jupiter MOID = 2.65199 au 
 T_jup = 3.458 
[ 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 15.1   n/a MPO309550  
diameter diameter 2.351 km 0.269 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52307 (1991 TH1)          Discovered 1991-Oct-12 by Alu, J. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 TH1 = 1998 QZ91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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