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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2683920114407368 3.8053e-08  
a 2.206492788967292 6.2424e-09 au
q 1.61428775110688 8.59e-08 au
i 5.367185947565311 3.9512e-06 deg
node 319.1315142941079 2.6847e-05 deg
peri 5.289670994234191 2.7318e-05 deg
M 271.9793975201675 5.5377e-06 deg
tp 2459293.207622157042
(2021-Mar-19.70762216)
1.9209e-05 TDB
period 1197.159994453332
3.28
5.0803e-06
1.391e-08
d
yr
n .3007116857128102 1.2761e-09 deg/d
Q 2.798697826827705 7.9178e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1775  
   data-arc span      14876 days (40.73 yr)  
   first obs. used      1978-08-08  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:33:25  

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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