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JPL Small-Body Database Browser
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173781 (2001 SB61)
Classification: Main-belt Asteroid          SPK-ID: 2173781
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2074258113670742 9.5266e-08  
a 3.054756362490478 2.339e-08 au
q 2.421121045472159 2.9343e-07 au
i 4.209215127870555 8.3719e-06 deg
node 26.73823748574569 7.9739e-05 deg
peri 303.4865923489451 8.18e-05 deg
M 132.6984452390097 1.8124e-05 deg
tp 2457881.669282045963
(2017-May-08.16928205)
9.7197e-05 TDB
period 1950.128790110191
5.34
2.2397e-05
6.132e-08
d
yr
n .1846031922741156 2.1202e-09 deg/d
Q 3.688391679508798 2.8241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      6314 days (17.29 yr)  
   first obs. used      2001-09-17  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64721  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:52:44  

Additional Information
 Earth MOID = 1.41274 au 
 Jupiter MOID = 1.69262 au 
 T_jup = 3.198 
[ 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 15.5   n/a MPC25967  

173781 (2001 SB61)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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