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52925 (1998 SW117)
Classification: Main-belt Asteroid          SPK-ID: 2052925
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07467943782377566 3.7101e-08  
a 2.278295005087622 8.4775e-09 au
q 2.108153214910962 8.4996e-08 au
i 6.704536860911916 4.803e-06 deg
node .692794159330015 2.9714e-05 deg
peri 298.9079017934779 4.3029e-05 deg
M 234.1112025980375 3.3016e-05 deg
tp 2459639.736020273921
(2022-Mar-01.23602027)
0.00011581 TDB
period 1256.068614220843
3.44
7.0107e-06
1.919e-08
d
yr
n .2866085466384438 1.5997e-09 deg/d
Q 2.448436795264282 9.1106e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1236  
   data-arc span      8214 days (22.49 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:20:31  

Additional Information
 Earth MOID = 1.10069 au 
 Jupiter MOID = 2.69673 au 
 T_jup = 3.595 
[ 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 15.14   n/a MPCxxxxx  
diameter diameter 2.721 km 0.398 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52925 (1998 SW117)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SW117 = 2000 DW94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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