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JPL Small-Body Database Browser
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172520 (2003 SL261)
Classification: Main-belt Asteroid          SPK-ID: 2172520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1597968706926453 4.8827e-08  
a 2.379527461400371 1.7837e-08 au
q 1.999286419341378 1.1537e-07 au
i 2.69102864838996 9.3418e-06 deg
node 231.7842066839442 0.00012422 deg
peri 75.30190141359918 0.00012803 deg
M 244.9359763247105 3.2354e-05 deg
tp 2459429.020462273054
(2021-Aug-02.52046227)
0.0001228 TDB
period 1340.7089504678
3.67
1.5075e-05
4.127e-08
d
yr
n .2685146540376186 3.0193e-09 deg/d
Q 2.759768503459365 2.0688e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      6092 days (16.68 yr)  
   first obs. used      2002-04-09  
   last obs. used      2018-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:50:37  

Additional Information
 Earth MOID = .986491 au 
 Jupiter MOID = 2.47712 au 
 T_jup = 3.520 
[ 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 17.4   n/a MPO412968  

172520 (2003 SL261)          Discovered 2003-Sep-27 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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