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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2235453006270479 1.1595e-07  
a 2.716083362941889 1.9793e-08 au
q 2.108915691044921 3.1109e-07 au
i 27.56148004610632 1.1951e-05 deg
node 357.8009079007289 1.5004e-05 deg
peri 349.968408706632 2.3382e-05 deg
M 355.7663440272862 2.0023e-05 deg
tp 2458619.727646693215
(2019-May-16.22764669)
9.1019e-05 TDB
period 1634.982354298475
4.48
1.7872e-05
4.893e-08
d
yr
n .2201858625896094 2.4069e-09 deg/d
Q 3.323251034838856 2.4218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      6696 days (18.33 yr)  
   first obs. used      2001-07-28  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47596  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:48:43  

Additional Information
 Earth MOID = 1.10619 au 
 Jupiter MOID = 2.12321 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-January); 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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