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52865 (1998 SH22)
Classification: Main-belt Asteroid          SPK-ID: 2052865
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844709324409333 3.5011e-08  
a 2.270912853857775 7.3968e-09 au
q 1.85199544221453 7.8773e-08 au
i 6.306131164843062 5.3012e-06 deg
node 350.0337521820067 3.5863e-05 deg
peri 59.30745757352906 3.9986e-05 deg
M 142.4005321540794 1.6387e-05 deg
tp 2458706.066098405174
(2019-Aug-10.56609841)
5.6106e-05 TDB
period 1249.968675549209
3.42
6.107e-06
1.672e-08
d
yr
n .2880072173343254 1.4071e-09 deg/d
Q 2.689830265501019 8.7612e-09 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      14107 days (38.62 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50069  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:40  

Additional Information
 Earth MOID = .870031 au 
 Jupiter MOID = 2.71802 au 
 T_jup = 3.582 
[ 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 15.64   n/a E2021B10  
diameter diameter 2.214 km 0.688 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.273   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52865 (1998 SH22)          Discovered 1998-Sep-23 by Visnjan at Visnjan
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SH22 = 1981 UP27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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