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JPL Small-Body Database Browser
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3609 Liloketai (1980 VM1)
Classification: Main-belt Asteroid          SPK-ID: 2003609
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .244251252676396 3.4569e-08  
a 3.120760311127828 1.9296e-08 au
q 2.358510695832077 1.0931e-07 au
i 4.856316962243763 4.1771e-06 deg
node 65.30590347799603 6.858e-05 deg
peri 31.01113915571201 6.9529e-05 deg
M 311.3899124938653 1.3083e-05 deg
tp 2458872.402343127953
(2020-Jan-23.90234313)
7.4288e-05 TDB
period 2013.673468777647
5.51
1.8676e-05
5.113e-08
d
yr
n .1787777440493019 1.6581e-09 deg/d
Q 3.88300992642358 2.4009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2541  
   data-arc span      24388 days (66.77 yr)  
   first obs. used      1952-11-12  
   last obs. used      2019-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42303  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:32:32  

Additional Information
 Earth MOID = 1.37697 au 
 Jupiter MOID = 1.33702 au 
 T_jup = 3.164 
[ 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 12.2   n/a MPO416748  
diameter diameter 17.598 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.636 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 0.083   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3609 Liloketai (1980 VM1)          Discovered 1980-Nov-13 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 VM1 = 1952 VB = 1963 UG = 1971 FE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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