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JPL Small-Body Database Browser
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295640 (2008 SZ257)
Classification: Main-belt Asteroid          SPK-ID: 2295640
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09473264826265626 8.329e-08  
a 3.024360636293884 5.0813e-08 au
q 2.737854943916432 2.6512e-07 au
i .6747478767732792 1.1929e-05 deg
node 205.1634104736669 0.00067825 deg
peri 215.1222461017704 0.00068157 deg
M 334.2738586316073 6.9778e-05 deg
tp 2458737.784321986878
(2019-Sep-11.28432199)
0.00037436 TDB
period 1921.09478089072
5.26
4.8415e-05
1.326e-07
d
yr
n .1873931487300617 4.7226e-09 deg/d
Q 3.310866328671335 5.5626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      1997-09-29  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68423  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:24:49  

Additional Information
 Earth MOID = 1.75011 au 
 Jupiter MOID = 1.97024 au 
 T_jup = 3.238 
[ 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 16.5   n/a MPO455185  

295640 (2008 SZ257)          Discovered 2008-Sep-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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