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249838 (2001 OR104)
Classification: Main-belt Asteroid          SPK-ID: 2249838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2237224318918544 1.1409e-07  
a 2.716799728474213 1.9351e-08 au
q 2.108990686256833 3.0576e-07 au
i 27.55930541787969 1.0869e-05 deg
node 357.7926659117446 1.4181e-05 deg
peri 350.0190438899949 2.2003e-05 deg
M 83.77635618082371 1.9917e-05 deg
tp 2458619.869284957355
(2019-May-16.36928496)
8.8836e-05 TDB
period 1635.629235527882
4.48
1.7475e-05
4.784e-08
d
yr
n .2200987804450767 2.3516e-09 deg/d
Q 3.324608770691594 2.3681e-08 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      6749 days (18.48 yr)  
   first obs. used      2001-07-28  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:27:31  

Additional Information
 Earth MOID = 1.10713 au 
 Jupiter MOID = 2.1254 au 
 T_jup = 3.164 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO224351  
diameter diameter 2.254 km 0.380 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 670.775 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.289   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249838 (2001 OR104)          Discovered 2001-Jul-28 by LONEOS at Anderson Mesa
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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