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JPL Small-Body Database Browser
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39049 (2000 UJ97)
Classification: Main-belt Asteroid          SPK-ID: 2039049
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06705927054718493 6.0751e-08  
a 2.73297169409853 1.4702e-08 au
q 2.549700605866179 1.6456e-07 au
i 4.813592200418746 4.4153e-06 deg
node 289.2905940623356 6.7579e-05 deg
peri 112.6839893981013 7.7479e-05 deg
M 124.4249713651297 3.6817e-05 deg
tp 2458430.130654859458
(2018-Nov-07.63065486)
0.00016879 TDB
period 1650.255266268358
4.52
1.3317e-05
3.646e-08
d
yr
n .2181480691857149 1.7603e-09 deg/d
Q 2.916242782330882 1.5688e-08 au
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:04:52  

Additional Information
 Earth MOID = 1.56305 au 
 Jupiter MOID = 2.35748 au 
 T_jup = 3.345 
[ 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 MPO468227  
diameter diameter 5.665 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.372 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 0.060   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39049 (2000 UJ97)          Discovered 2000-Oct-25 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

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