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3522 Becker (1941 SW)
Classification: Main-belt Asteroid          SPK-ID: 2003522
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .286678591863313 3.741e-08  
a 3.182848854329208 1.6774e-08 au
q 2.270394226656351 1.1964e-07 au
i 8.344125050303964 4.715e-06 deg
node 201.6886733326641 2.81e-05 deg
peri 149.5809897579276 2.8998e-05 deg
M 330.8233472507796 8.8609e-06 deg
tp 2459168.595240160087
(2020-Nov-15.09524016)
5.1869e-05 TDB
period 2074.065417228105
5.68
1.6396e-05
4.489e-08
d
yr
n .1735721530332075 1.3721e-09 deg/d
Q 4.095303482002064 2.1582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1882  
   data-arc span      28756 days (78.73 yr)  
   first obs. used      1941-09-23  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51276  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:58:27  

Additional Information
 Earth MOID = 1.26997 au 
 Jupiter MOID = 1.41886 au 
 T_jup = 3.118 
[ 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 12.3   n/a MPO473814  
diameter diameter 20.113 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 30.9114 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.052   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3522 Becker (1941 SW)          Discovered 1941-Sep-21 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1941 SW = 1964 UG = 1981 TL2 = 1981 UA20 = 1981 WC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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