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2222 Lermontov (1977 ST1)
Classification: Main-belt Asteroid          SPK-ID: 2002222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621233194430449 3.6548e-08  
a 3.130773307606518 1.8589e-08 au
q 2.623201946553668 1.1169e-07 au
i 2.57424906373883 4.1951e-06 deg
node 94.84378838536962 0.00010085 deg
peri 339.3601068239846 0.00010193 deg
M 238.625913317667 1.6896e-05 deg
tp 2459682.680552927888
(2022-Apr-13.18055293)
9.7518e-05 TDB
period 2023.372581140804
5.54
1.802e-05
4.934e-08
d
yr
n .1779207662273585 1.5846e-09 deg/d
Q 3.638344668659367 2.1602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2432  
   data-arc span      31652 days (86.66 yr)  
   first obs. used      1933-10-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4562  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:42:24  

Additional Information
 Earth MOID = 1.63842 au 
 Jupiter MOID = 1.63518 au 
 T_jup = 3.191 
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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 11.3   n/a MPO435718  
diameter diameter 29.644 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.344 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Clark, M. (2007) Minor Planet Bull. 34, 19-22.]
geometric albedo albedo 0.070   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2222 Lermontov           Discovered 1977 Sept. 19 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Named for the great Russian poet Mikhail Yur'evich Lermontov (1814-1841).
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

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Alternate Designations
 1977 ST1 = 1933 UO = 1940 AG = 1951 AD1 = 1961 XN = 1966 UR = 1972 YH1 = 1973 AS2 = 1974 FA = 1974 HM1 = 1976 OM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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