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15673 Chetaev (1978 PV2)
Classification: Mars-crossing Asteroid          SPK-ID: 2015673
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2683920078539354 3.54e-08  
a 2.206492790435488 6.1607e-09 au
q 1.614287760095274 8.0462e-08 au
i 5.367184275371695 3.2736e-06 deg
node 319.1315767754846 2.5708e-05 deg
peri 5.289622434423115 2.6091e-05 deg
M 271.9793867069337 5.4057e-06 deg
tp 2459293.207658408001
(2021-Mar-19.70765841)
1.883e-05 TDB
period 1197.159995648214
3.28
5.0138e-06
1.373e-08
d
yr
n .3007116854126708 1.2594e-09 deg/d
Q 2.798697820775701 7.8142e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2078  
   data-arc span      15314 days (41.93 yr)  
   first obs. used      1978-08-08  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49764  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:32:08  

Additional Information
 Earth MOID = .602245 au 
 Jupiter MOID = 2.54356 au 
 T_jup = 3.607 
[ 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 14.4   n/a MPO347648  
diameter diameter 2.997 km 0.515 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.362   0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

15673 Chetaev           Discovered 1978 Aug. 8 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Soviet mathematician and mechanician Nikolaj Gur'evich Chetaev (1902-1959), a professor at the universities in Kazan and Moscow, made valuable contributions to analytical mechanics and stability theory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1978 PV2 = 1978 RY2 = 1978 SE2 = 1998 XC64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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