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1979 Sakharov (2006 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2001979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011477858792794 1.6427e-08  
a 2.373148541705178 6.1266e-09 au
q 2.133109821149059 3.9033e-08 au
i 6.048305038598732 9.2333e-07 deg
node 202.6380671660349 6.31e-06 deg
peri 220.9779161539776 1.0961e-05 deg
M 173.8345071084681 7.4439e-06 deg
tp 2458751.708504485292
(2019-Sep-25.20850449)
2.6995e-05 TDB
period 1335.321405665764
3.66
5.1709e-06
1.416e-08
d
yr
n .269598014734521 1.044e-09 deg/d
Q 2.613187262261297 6.7463e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2689  
   data-arc span      22233 days (60.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4481  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:14:21  

Additional Information
 Earth MOID = 1.14946 au 
 Jupiter MOID = 2.6589 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457242.5 (2015-Aug-08.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09991661863841717 1.6356e-08  
q 2.136834885450198 3.8825e-08 au
tp 2457414.351306981543
(2016-Jan-26.85130698)
2.6995e-05 TDB
node 202.6608219545264 6.3112e-06 deg
peri 220.6893151792859 1.1076e-05 deg
i 6.045647348269519 9.2393e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2689  
   data-arc span      22233 days (60.87 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4481  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:14:21  

Additional Information
 Jupiter MOID = 2.6589 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.675112404359841E-16 -6.285916351518277E-16 -1.767834355501844E-14 1.867964578297608E-14 -7.841575959238484E-15 -3.220766434686905E-15
q -6.285916351518277E-16 1.507382273781703E-15 4.376407188349162E-14 -4.486254408230091E-14 1.910295429784892E-14 7.835700895540298E-15
tp -1.767834355501844E-14 4.376407188349162E-14 7.287347111882661E-10 -2.687186254525327E-11 2.491858050591973E-10 7.405421178961813E-12
node 1.867964578297608E-14 -4.486254408230091E-14 -2.687186254525327E-11 3.983086131938538E-11 -4.654916733744028E-11 -3.764179459632117E-12
peri -7.841575959238484E-15 1.910295429784892E-14 2.491858050591973E-10 -4.654916733744028E-11 1.226709962284704E-10 5.750039463336742E-12
i -3.220766434686905E-15 7.835700895540298E-15 7.405421178961813E-12 -3.764179459632117E-12 5.750039463336742E-12 8.536385336066597E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.69   n/a MPO614063  
diameter diameter 4.760 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.5209 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J.; Inasaridze, R.Y.; Kvaratskhelia, O.I.; Ayvazian, V.; et al. (2013) Minor Planet Bull. 40, 169-172.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J. (2014) Minor Planet Bull. 41, 276-281.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.394   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1979 Sakharov           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named in honor of Academician Andrej Dmitrievich Sakharov, distinguished physicist and mathematician -- and a courageous individual.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6207Last Updated: 2006-03-21

Alternate Designations
 2006 P-L = 1971 SQ3 = 1982 SZ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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