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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2866785823013921 3.6381e-08  
a 3.182848843223068 1.3853e-08 au
q 2.270394249168253 1.1777e-07 au
i 8.344126499996623 4.1632e-06 deg
node 201.6886761175336 2.7741e-05 deg
peri 149.5809830398177 2.8441e-05 deg
M 330.8233541682074 6.6113e-06 deg
tp 2459168.595199426940
(2020-Nov-15.09519943)
3.8518e-05 TDB
period 2074.06540637233
5.68
1.3541e-05
3.707e-08
d
yr
n .1735721539416939 1.1332e-09 deg/d
Q 4.095303437277883 1.7824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      28802 days (78.86 yr)  
   first obs. used      1941-09-23  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50209  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:04:36  

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

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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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