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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .268493952135163 2.052e-08  
a 2.206876523929636 5.2859e-09 au
q 1.614343524145457 4.6294e-08 au
i 5.367238224980949 8.714e-07 deg
node 319.1298815153199 3.5203e-06 deg
peri 5.263726062958814 3.6266e-06 deg
M 332.1481662775854 3.2357e-06 deg
tp 2459293.143887825120
(2021-Mar-19.64388783)
1.1062e-05 TDB
period 1197.472308266817
3.28
4.3023e-06
1.178e-08
d
yr
n .3006332568316779 1.0801e-09 deg/d
Q 2.799409523713815 6.7051e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2109  
   data-arc span      15314 days (41.93 yr)  
   first obs. used      1978-08-08  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49885  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:05:32  

Additional Information
 Earth MOID = .600337 au 
 Jupiter MOID = 2.54282 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 14.38   n/a E2021B10  
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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