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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287630295992516 3.381e-08  
a 2.428195113978227 9.0642e-09 au
q 2.11553335464429 8.2903e-08 au
i 5.64668185192458 3.9652e-06 deg
node 240.7218728899744 3.2924e-05 deg
peri 38.63797277996413 3.5931e-05 deg
M 235.0301035949432 1.6076e-05 deg
tp 2459680.262951089138
(2022-Apr-10.76295109)
6.2837e-05 TDB
period 1382.050136556733
3.78
7.7386e-06
2.119e-08
d
yr
n .2604825906655682 1.4585e-09 deg/d
Q 2.740856873312164 1.0231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2457  
   data-arc span      17815 days (48.77 yr)  
   first obs. used      1972-04-12  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:14:21  

Additional Information
 Earth MOID = 1.10077 au 
 Jupiter MOID = 2.36823 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 13.02   n/a E2021B10  
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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