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49214 (1998 SJ123)
Classification: Main-belt Asteroid          SPK-ID: 2049214
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05719010597832042 3.1858e-08  
a 2.345900958667974 8.1296e-09 au
q 2.211738634227109 7.4106e-08 au
i 6.238381241688998 4.2788e-06 deg
node 13.50971184280575 3.3114e-05 deg
peri 226.0325914133672 5.0988e-05 deg
M 35.13190156746015 3.8457e-05 deg
tp 2458472.425670038627
(2018-Dec-19.92567004)
0.00014018 TDB
period 1312.39007081812
3.59
6.822e-06
1.868e-08
d
yr
n .2743086891655487 1.4259e-09 deg/d
Q 2.480063283108839 8.5945e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1410  
   data-arc span      7722 days (21.14 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48558  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:40:34  

Additional Information
 Earth MOID = 1.20529 au 
 Jupiter MOID = 2.51101 au 
 T_jup = 3.551 
[ 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 14.6   n/a MPO395467  
diameter diameter 3.076 km 0.772 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.324   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49214 (1998 SJ123)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SJ123 = 2000 DR82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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