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344589 (2003 BR81)
Classification: Main-belt Asteroid          SPK-ID: 2344589
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392804046763255 7.8991e-08  
a 3.149238410219305 4.7851e-08 au
q 2.710611210021732 2.6985e-07 au
i 27.4081018013204 7.9967e-06 deg
node 144.9021986363578 1.72e-05 deg
peri 288.6557487930104 3.6311e-05 deg
M 19.25968237649592 2.7905e-05 deg
tp 2458491.292275927188
(2019-Jan-07.79227593)
0.00015848 TDB
period 2041.299534315852
5.59
4.6525e-05
1.274e-07
d
yr
n .1763582433386755 4.0195e-09 deg/d
Q 3.587865610416878 5.4516e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2000-07-24  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:24:51  

Additional Information
 Earth MOID = 1.84361 au 
 Jupiter MOID = 1.78814 au 
 T_jup = 3.020 
[ 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 15.1   n/a MPO418778  
diameter diameter 4.920 km 1.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.245 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 0.067   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

344589 (2003 BR81)          Discovered 2003-Jan-31 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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