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2216 Kerch (1971 LF)
Classification: Main-belt Asteroid          SPK-ID: 2002216
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09619380731561811 4.0323e-08  
a 3.019327852384967 1.4449e-08 au
q 2.728887210729968 1.2355e-07 au
i 10.4352326756654 4.4693e-06 deg
node 155.5587733471525 1.8464e-05 deg
peri 182.8008769655525 2.6211e-05 deg
M 45.72345926659123 1.7426e-05 deg
tp 2458757.111297180381
(2019-Sep-30.61129718)
9.2965e-05 TDB
period 1916.301487693521
5.25
1.3755e-05
3.766e-08
d
yr
n .1878618799348214 1.3485e-09 deg/d
Q 3.309768494039966 1.5839e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2812  
   data-arc span      30208 days (82.70 yr)  
   first obs. used      1938-02-16  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:11:35  

Additional Information
 Earth MOID = 1.71972 au 
 Jupiter MOID = 2.07673 au 
 T_jup = 3.215 
[ 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 11.2   n/a MPO452192  
diameter diameter 18.024 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.462 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Krotz, J.; Albers, K.; Carbo, L.; Kragh, K.; et al. (2010) Minor Planet Bull. 37, 99-101.]
geometric albedo albedo 0.120   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2216 Kerch           Discovered 1971 June 12 by T. M. Smirnova at the Crimean Astrophysical Observatory.
Named for the hero city in the Crimea.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5850Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1971 LF = 1930 QF = 1935 QF1 = 1938 DJ = 1959 CG1 = 1970 FK = 1975 ES2 = 1977 RB4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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