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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06059673205785211 3.9687e-08  
a 3.124396028798093 1.2385e-08 au
q 2.935067839798398 1.2256e-07 au
i 6.868982483996817 4.6627e-06 deg
node 343.9650412503553 3.4568e-05 deg
peri 64.18047527708561 5.1641e-05 deg
M 175.8042628619685 3.8862e-05 deg
tp 2457615.413327687946
(2016-Aug-14.91332769)
0.00021616 TDB
period 2017.193418744206
5.52
1.1994e-05
3.284e-08
d
yr
n .1784657815432078 1.0611e-09 deg/d
Q 3.313724217797789 1.3135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2736  
   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      .47156  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:51:55  

Additional Information
 Earth MOID = 1.95185 au 
 Jupiter MOID = 1.94204 au 
 T_jup = 3.201 
[ 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-January); 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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