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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2866785792777384 4.0247e-08  
a 3.182848839814426 2.0971e-08 au
q 2.270394256360628 1.2559e-07 au
i 8.34412633377107 5.0924e-06 deg
node 201.6886670370691 2.8139e-05 deg
peri 149.5809776107698 2.9371e-05 deg
M 330.8233625961605 1.1775e-05 deg
tp 2459168.595150601005
(2020-Nov-15.09515060)
6.9116e-05 TDB
period 2074.065403040529
5.68
2.0498e-05
5.612e-08
d
yr
n .1735721542205221 1.7154e-09 deg/d
Q 4.095303423268223 2.6982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      28453 days (77.90 yr)  
   first obs. used      1941-09-23  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:31:59  

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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