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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 ]

[ 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 .2229604784772218 9.5525e-08  
a 2.297771148880535 6.8893e-09 au
q 1.785458994094975 2.1766e-07 au
i 22.95256636532951 6.7412e-06 deg
node 18.17449901544359 9.7873e-06 deg
peri 3.211108402968639 1.4124e-05 deg
M 134.668453346384 9.7171e-06 deg
tp 2458724.593149290737
(2019-Aug-29.09314929)
3.3408e-05 TDB
period 1272.209355628834
3.48
5.7216e-06
1.566e-08
d
yr
n .2829722941489118 1.2726e-09 deg/d
Q 2.810083303666095 8.4254e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1023  
   data-arc span      15920 days (43.59 yr)  
   first obs. used      1977-08-21  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48101  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:17:46  

Additional Information
 Earth MOID = .787012 au 
 Jupiter MOID = 2.6554 au 
 T_jup = 3.458 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.17   n/a E2021B10  
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

Alternate Designations
 1991 TH1 = 1998 QZ91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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