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3936 Elst (2321 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2003936
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288064434036829 3.5955e-08  
a 2.428216517954566 9.4396e-09 au
q 2.115446584462763 8.7297e-08 au
i 5.647128544988372 4.3222e-06 deg
node 240.7296235400591 3.2928e-05 deg
peri 38.58069174553165 3.6038e-05 deg
M 182.9986459831454 1.6004e-05 deg
tp 2459680.022166562162
(2022-Apr-10.52216656)
6.2918e-05 TDB
period 1382.068410273766
3.78
8.0591e-06
2.206e-08
d
yr
n .2604791465631499 1.5189e-09 deg/d
Q 2.740986451446369 1.0656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2327  
   data-arc span      17739 days (48.57 yr)  
   first obs. used      1972-04-12  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45182  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:14:54  

Additional Information
 Earth MOID = 1.10253 au 
 Jupiter MOID = 2.36892 au 
 T_jup = 3.491 
[ 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 13.0   n/a MPO350832  
diameter diameter 4.677 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.6322 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.507   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3936 Elst (2321 T-3)          Discovered 1977-Oct-16 by van Houten, C. J. at Palomar
Discovered in the course of the Third Trojan Survey by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 2321 T-3 = 1972 GY = 1973 TC = 1976 JG1 = 1980 MB = 1981 WA2 = 1984 MT = 1985 WS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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