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JPL Small-Body Database Browser
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249581 (1995 SX87)
Classification: Main-belt Asteroid          SPK-ID: 2249581
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1584750714448661 4.9714e-08  
a 2.41149160122518 1.6392e-08 au
q 2.029330297432325 1.2286e-07 au
i 1.389931302254767 8.675e-06 deg
node 62.54152258099938 0.00023854 deg
peri 49.5093091902152 0.00024137 deg
M 20.5477464904266 3.3587e-05 deg
tp 2458522.429177361631
(2019-Feb-07.92917736)
0.00012744 TDB
period 1367.814040479205
3.74
1.3946e-05
3.818e-08
d
yr
n .2631936720534585 2.6835e-09 deg/d
Q 2.793652905018035 1.8989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      8507 days (23.29 yr)  
   first obs. used      1995-09-26  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63688  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:40:45  

Additional Information
 Earth MOID = 1.04651 au 
 Jupiter MOID = 2.31044 au 
 T_jup = 3.502 
[ 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 17.6   n/a MPO418332  

249581 (1995 SX87)          Discovered 1995-Sep-26 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1995 SX87 = 1999 WC20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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