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JPL Small-Body Database Browser
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39052 (2000 UL99)
Classification: Main-belt Asteroid          SPK-ID: 2039052
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05893018199075369 3.9708e-08  
a 3.195802910915809 2.4438e-08 au
q 3.00747366376896 1.2607e-07 au
i 10.36478939547451 5.0548e-06 deg
node 26.8081370947035 2.7219e-05 deg
peri 41.30231025035318 5.8432e-05 deg
M 140.1789816114917 4.9935e-05 deg
tp 2458187.952406062384
(2018-Mar-10.45240606)
0.00028961 TDB
period 2086.740326222784
5.71
2.3936e-05
6.553e-08
d
yr
n .1725178717620497 1.9788e-09 deg/d
Q 3.384132158062658 2.5878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      9246 days (25.31 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:04:52  

Additional Information
 Earth MOID = 2.02876 au 
 Jupiter MOID = 1.85623 au 
 T_jup = 3.167 
[ 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 13.9   n/a MPO299234  
diameter diameter 10.398 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.661 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 0.078   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39052 (2000 UL99)          Discovered 2000-Oct-25 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 UL99 = 1997 GG18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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