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303 Josephina (A891 CA)
Classification: Main-belt Asteroid          SPK-ID: 2000303
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05815327710859341 1.0634e-08  
a 3.129756227670526 8.6611e-09 au
q 2.947750646480456 2.5988e-08 au
i 6.873227334531528 5.5666e-07 deg
node 343.7214261064574 1.8904e-06 deg
peri 64.60696903780349 1.7989e-05 deg
M 246.7467831225192 1.9893e-05 deg
tp 2459636.727213281735
(2022-Feb-26.22721328)
0.00011434 TDB
period 2022.386675596208
5.54
8.395e-06
2.298e-08
d
yr
n .1780075019006296 7.3891e-10 deg/d
Q 3.311761808860596 9.1648e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3568  
   data-arc span      9325 days (25.53 yr)  
   first obs. used      1994-12-06  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38907  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2020-Jun-25 10:56:29  

Additional Information
 Earth MOID = 1.96514 au 
 Jupiter MOID = 1.93249 au 
 T_jup = 3.200 
[ 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 8.9   n/a MPO347513  
diameter diameter 124.923 km 0.952 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 12.497 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, N.M.; Krugly, Yu.N.; et al. (2005) Abstr. IAU Symp. 229, p. 133.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, M.; Krugly, Y.N.; et al. (2008) Icarus 196, 601-611.]
geometric albedo albedo 0.034   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

303 Josephina (A891 CA)          Discovered 1891-Feb-12 by Millosevich, E. at Rome
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A891 CA = 1948 MA = 1974 KC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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