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186189 (2001 VM54)
Classification: Main-belt Asteroid          SPK-ID: 2186189
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1757612655078891 4.6917e-08  
a 2.735358838362241 1.3104e-08 au
q 2.254588707313504 1.2832e-07 au
i 8.444782886326072 5.1542e-06 deg
node 6.217943150013345 2.5307e-05 deg
peri 27.35896503395875 2.9615e-05 deg
M 88.09175905209401 1.2653e-05 deg
tp 2458796.154448566491
(2019-Nov-08.65444857)
5.7781e-05 TDB
period 1652.417888828651
4.52
1.1874e-05
3.251e-08
d
yr
n .2178625651742327 1.5655e-09 deg/d
Q 3.216128969410978 1.5407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      22086 days (60.47 yr)  
   first obs. used      1960-10-17  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:13:51  

Additional Information
 Earth MOID = 1.26273 au 
 Jupiter MOID = 2.25989 au 
 T_jup = 3.314 
[ 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 16.08   n/a MPCxxxxx  
diameter diameter 1.954 km 0.483 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.196 h n/a LCDB (Rev. 2020-October); 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 0.184   0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

186189 (2001 VM54)          Discovered 2001-Nov-10 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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