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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298569793731991 3.2776e-08  
a 3.160692952730759 1.5334e-08 au
q 2.750254913162985 1.0723e-07 au
i 2.109743033048207 3.6364e-06 deg
node 134.8917429070328 9.9424e-05 deg
peri 112.3020099374042 0.00010071 deg
M 356.6092245128735 1.4271e-05 deg
tp 2459019.831627721453
(2020-Jun-19.33162772)
8.1319e-05 TDB
period 2052.446706113435
5.62
1.4936e-05
4.089e-08
d
yr
n .1754004130424927 1.2764e-09 deg/d
Q 3.571130992298533 1.7325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2632  
   data-arc span      32896 days (90.06 yr)  
   first obs. used      1930-05-25  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:59:25  

Additional Information
 Earth MOID = 1.7375 au 
 Jupiter MOID = 1.45584 au 
 T_jup = 3.191 
[ 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 11.5   n/a MPO473815  
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 16. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
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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