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JPL Small-Body Database Browser
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255703 Stetson (2006 QN90)
Classification: Main-belt Asteroid          SPK-ID: 2255703
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174502251062013 6.8461e-08  
a 2.420765153604367 2.6397e-08 au
q 2.136445741384287 1.66e-07 au
i 5.143651798282622 7.4574e-06 deg
node 11.45258965502467 7.5959e-05 deg
peri 296.9814978439937 8.694e-05 deg
M 148.5794070570895 5.2266e-05 deg
tp 2458032.715495850911
(2017-Oct-06.21549585)
0.00019423 TDB
period 1375.711651717207
3.77
2.2502e-05
6.161e-08
d
yr
n .261682744018804 4.2802e-09 deg/d
Q 2.705084565824448 2.9497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1995-09-25  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56622  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:39:43  

Additional Information
 Earth MOID = 1.12721 au 
 Jupiter MOID = 2.52651 au 
 T_jup = 3.499 
[ 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 17.3   n/a MPO454899  

255703 Stetson           Discovered 2006 Aug. 25 by D. D. Balam at Mauna Kea.
Peter Brailey Stetson (b. 1952) develops freely-available software for the analysis of CCD images and spectra, notably DAOPHOT for precision photometry in crowded fields. His fundamental contributions to numerous fields have greatly advanced astrophysics since the deployment of CCDs in the 1980s.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 2006 QN90 = 1995 SP44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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