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52949 (1998 SK145)
Classification: Main-belt Asteroid          SPK-ID: 2052949
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 .2239959494099436 5.7912e-08  
a 2.391270930644001 8.7619e-09 au
q 1.855635928237998 1.4133e-07 au
i 1.986707280442733 5.2822e-06 deg
node 187.2128550238625 9.3449e-05 deg
peri 158.7553778270631 9.3864e-05 deg
M 23.6144554452943 6.5061e-06 deg
tp 2459111.903403637597
(2020-Sep-19.40340364)
2.455e-05 TDB
period 1350.646207546602
3.70
7.4234e-06
2.032e-08
d
yr
n .2665390818028701 1.4649e-09 deg/d
Q 2.926905933050003 1.0725e-08 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      9155 days (25.07 yr)  
   first obs. used      1996-01-13  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:49:13  

Additional Information
 Earth MOID = .846931 au 
 Jupiter MOID = 2.49573 au 
 T_jup = 3.497 
[ 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 16.00   n/a E2021B10  

52949 (1998 SK145)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SK145 = 1996 AQ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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