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118890 (2000 UM41)
Classification: Main-belt Asteroid          SPK-ID: 2118890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137937302765349 4.9006e-08  
a 3.155658613325107 2.5175e-08 au
q 2.7203755757548 1.4981e-07 au
i 11.1197066479515 5.0674e-06 deg
node 44.58230420181214 2.7869e-05 deg
peri 103.0025161677316 3.3438e-05 deg
M 98.24944151267526 1.7821e-05 deg
tp 2458441.694029600004
(2018-Nov-19.19402960)
0.00010031 TDB
period 2047.54496561739
5.61
2.4502e-05
6.708e-08
d
yr
n .1758203145938973 2.1039e-09 deg/d
Q 3.590941650895414 2.8647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      699  
   data-arc span      6772 days (18.54 yr)  
   first obs. used      2000-10-24  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55027  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:56:10  

Additional Information
 Earth MOID = 1.75852 au 
 Jupiter MOID = 1.5297 au 
 T_jup = 3.163 
[ 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 14.3   n/a MPO475044  
diameter diameter 8.866 km 0.537 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.90763 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.056   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118890 (2000 UM41)          Discovered 2000-Oct-24 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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