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JPL Small-Body Database Browser
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303 Josephina
Classification: Main-belt Asteroid          SPK-ID: 2000303
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0581532981284516 3.9394e-08  
a 3.12975623925449 1.3452e-08 au
q 2.947750591603743 1.2074e-07 au
i 6.873222903326227 4.6595e-06 deg
node 343.721430763786 3.4484e-05 deg
peri 64.60698343408865 5.301e-05 deg
M 246.7467588566767 4.0821e-05 deg
tp 2459636.727353133188
(2022-Feb-26.22735313)
0.00023044 TDB
period 2022.386686824201
5.54
1.3039e-05
3.57e-08
d
yr
n .1780075009123582 1.1476e-09 deg/d
Q 3.311761886905238 1.4234e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3622  
   data-arc span      46941 days (128.52 yr)  
   first obs. used      1891-03-12  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41239  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:22:05  

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          Discovered 1891-Feb-12 by Millosevich, E. at Rome
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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