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JPL Small-Body Database Browser
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6169 Sashakrot (1981 EX4)
Classification: Main-belt Asteroid          SPK-ID: 2006169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1432019027475394 5.7688e-08  
a 3.09395548186969 2.4453e-08 au
q 2.65089516984977 1.7319e-07 au
i 20.03669332856034 7.6787e-06 deg
node 207.6575260342878 1.4534e-05 deg
peri 116.0757029399242 3.0308e-05 deg
M 292.3034458397996 3.1054e-05 deg
tp 2459374.295079251171
0.00017432 TDB
period 1987.78549661446
n .1811060602932971 2.147e-09 deg/d
Q 3.53701579388961 2.7954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      14245 days (39.00 yr)  
   first obs. used      1981-02-02  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49376  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:56:18  

Additional Information
 Earth MOID = 1.70818 au 
 Jupiter MOID = 2.04222 au 
 T_jup = 3.116 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO473851  
diameter diameter 10.254 km 3.879 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 250.055 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.140   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

6169 Sashakrot           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Alexander (Sasha) Krot (b. 1959) is a world-class cosmochemist who has made many contributions to the field of meteoritics. His achievements include the discovery of an energetic astrophysical setting for chondrule formation and identifying the existence of an 16 Oxygen-rich gaseous reservoir in the solar nebula.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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