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JPL Small-Body Database Browser
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173811 (2001 SQ270)
Classification: Main-belt Asteroid          SPK-ID: 2173811
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3201997148494564 4.8724e-08  
a 3.078495340967326 1.3953e-08 au
q 2.092762010624208 1.5412e-07 au
i 1.91070412089719 5.9483e-06 deg
node 149.186279207394 0.00013858 deg
peri 240.0517485532338 0.00013904 deg
M 89.78107164597535 8.4306e-06 deg
tp 2458108.473536245216
(2017-Dec-20.97353625)
4.4542e-05 TDB
period 1972.905020004433
5.40
1.3413e-05
3.672e-08
d
yr
n .1824720381111865 1.2406e-09 deg/d
Q 4.064228671310444 1.8421e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      10345 days (28.32 yr)  
   first obs. used      1990-11-12  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54457  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:47:33  

Additional Information
 Earth MOID = 1.09808 au 
 Jupiter MOID = 1.38316 au 
 T_jup = 3.147 
[ 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 MPO436863  

173811 (2001 SQ270)          Discovered 2001-Sep-16 by NEAT at Palomar
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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