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1949 Messina (1936 NE)
Classification: Main-belt Asteroid          SPK-ID: 2001949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2297382878743428 3.4982e-08  
a 2.383861719424512 7.2449e-09 au
q 1.836197409474738 8.4133e-08 au
i 4.65302368015541 3.3092e-06 deg
node 264.9816582223931 4.9906e-05 deg
peri 66.40695879558797 5.065e-05 deg
M 358.587262825779 1.2507e-05 deg
tp 2459401.775685388400
(2021-Jul-06.27568539)
4.6721e-05 TDB
period 1344.373726748722
3.68
6.1286e-06
1.678e-08
d
yr
n .2677826803939676 1.2207e-09 deg/d
Q 2.931526029374286 8.9094e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2324  
   data-arc span      31035 days (84.97 yr)  
   first obs. used      1936-07-08  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:58:41  

Additional Information
 Earth MOID = .83075 au 
 Jupiter MOID = 2.45093 au 
 T_jup = 3.496 
[ 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 13.43   n/a MPCxxxxx  
diameter diameter 3.560 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.6491 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Bianchi, E.; Padova, E. (1921) Mem. Soc. Astron. Ital. 2, 45-54.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.608   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1949 Messina           Discovered 1936 July 8 by C. Jackson at Johannesburg.
Named for a copper-mining town on the border between South Africa and Zimbabwe-Rhodesia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5183Last Updated: 2006-03-21

Alternate Designations
 1936 NE = 1940 RK = 1951 SP = 1951 TN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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