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3992 Wagner (1987 SA7)
Classification: Main-belt Asteroid          SPK-ID: 2003992
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07916515053347704 3.1059e-08  
a 3.019331023836353 1.4283e-08 au
q 2.78030522882395 9.1397e-08 au
i 10.41943757850031 3.4769e-06 deg
node 168.7853029186965 2.1693e-05 deg
peri 157.7702111063494 3.3838e-05 deg
M 123.4069134022277 2.6114e-05 deg
tp 2458343.596599044330
(2018-Aug-13.09659904)
0.00013927 TDB
period 1916.304506970775
5.25
1.3598e-05
3.723e-08
d
yr
n .1878615839447536 1.333e-09 deg/d
Q 3.258356818848755 1.5414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2892  
   data-arc span      24703 days (67.63 yr)  
   first obs. used      1953-03-14  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:21  

Additional Information
 Earth MOID = 1.77255 au 
 Jupiter MOID = 2.09638 au 
 T_jup = 3.217 
[ 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 MPO365294  
diameter diameter 17.131 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20.628 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:
[Hills, K. (2014) Minor Planet Bull. 41, 177-178.]
geometric albedo albedo 0.166   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3992 Wagner (1987 SA7)          Discovered 1987-Sep-29 by Borngen, F. at Tautenburg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 SA7 = 1951 YZ = 1953 EF1 = 1954 JB = 1982 UH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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