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1803 Zwicky (1967 CA)
Classification: Main-belt Asteroid          SPK-ID: 2001803
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2475337852987575 4.0839e-08  
a 2.34971792962039 7.5476e-09 au
q 1.768083356117096 9.445e-08 au
i 21.55198194457364 4.4998e-06 deg
node 337.2464896783601 1.2172e-05 deg
peri 253.9597322629706 1.4864e-05 deg
M 230.2487005771159 1.0163e-05 deg
tp 2459474.666904498556
(2021-Sep-17.16690450)
3.8087e-05 TDB
period 1315.594420855364
3.60
6.3388e-06
1.735e-08
d
yr
n .2736405645183093 1.3185e-09 deg/d
Q 2.931352503123685 9.4159e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2424  
   data-arc span      32466 days (88.89 yr)  
   first obs. used      1931-02-17  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:15:56  

Additional Information
 Earth MOID = .882058 au 
 Jupiter MOID = 2.38311 au 
 T_jup = 3.426 
[ 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 12.2   n/a MPO452185  
diameter diameter 9.934 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 27.1 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.259   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1803 Zwicky (1967 CA)          Discovered 1967-Feb-06 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1967 CA = 1931 DL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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