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JPL Small-Body Database Browser
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52948 (1998 SH145)
Classification: Main-belt Asteroid          SPK-ID: 2052948
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202154161009062 6.7777e-08  
a 2.4073597520964 1.2255e-08 au
q 1.920701961164369 1.6292e-07 au
i 2.774398417764259 6.8492e-06 deg
node 30.14738021914331 0.00010144 deg
peri 358.1867275034921 0.00010214 deg
M 177.1492674680103 1.3149e-05 deg
tp 2457929.153421258884
(2017-Jun-24.65342126)
4.7502e-05 TDB
period 1364.300128367424
3.74
1.0417e-05
2.852e-08
d
yr
n .263871557668759 2.0148e-09 deg/d
Q 2.894017543028431 1.4732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      12983 days (35.55 yr)  
   first obs. used      1983-10-08  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61327  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:08:26  

Additional Information
 Earth MOID = .924873 au 
 Jupiter MOID = 2.55142 au 
 T_jup = 3.492 
[ 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 16.1   n/a MPO296523  

52948 (1998 SH145)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SH145 = 1983 TZ = 1998 UM39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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