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3615 Safronov (1983 WZ)
Classification: Main-belt Asteroid          SPK-ID: 2003615
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306313269655389 3.2712e-08  
a 3.163449168072171 1.5183e-08 au
q 2.750203605458874 1.0714e-07 au
i 2.110283614670681 3.5095e-06 deg
node 134.8779685949606 9.8212e-05 deg
peri 112.3673848786727 9.9468e-05 deg
M 31.60204654529546 1.3744e-05 deg
tp 2459020.093398614065
(2020-Jun-19.59339861)
7.8903e-05 TDB
period 2055.131980324391
5.63
1.4795e-05
4.051e-08
d
yr
n .1751712315542751 1.2611e-09 deg/d
Q 3.576694730685469 1.7166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2852  
   data-arc span      33012 days (90.38 yr)  
   first obs. used      1930-05-25  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:58:48  

Additional Information
 Earth MOID = 1.73591 au 
 Jupiter MOID = 1.44951 au 
 T_jup = 3.190 
[ 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 11.58   n/a E2021B10  
diameter diameter 25.209 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 22.71 h n/a LCDB (Rev. 2020-October); 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:
[Polakis, T. (2020) Minor Planet Bull. 47, 314-321.]
geometric albedo albedo 0.099   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3615 Safronov (1983 WZ)          Discovered 1983-Nov-29 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1983 WZ = 1930 KS = 1951 AR = 1952 FK1 = 1969 JJ = 1970 PO = 1974 EM = 1976 SB7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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