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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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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 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1927-Jul-27 13:12 00:01 Jupiter 1.98255611289029 1.98255566413565 1.98255656164493 4.35667442900022 4.25748010917602 2425089.049675430 1.46736291275367 83.2452557306064 19.1413666391948 85.4029271186578 3788721.26616121 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 17:22:59 2020-Jan-28 17:23
1937-Nov-12 14:56 00:01 Jupiter 1.97385820350914 1.97385778617197 1.97385862084631 3.77746955304786 3.66210809975356 2428850.122514594 1.30487983460415 48.7396104386132 16.9029625932981 80.0741388552097 3527231.92089162 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 17:22:59 2020-Jan-28 17:23
2010-Feb-07 22:45 < 00:01 Jupiter 1.94698266826977 1.94698226205775 1.94698307448168 4.17837581764161 4.0729273381987 2455235.447783189 0.214181273867972 55.7220864936721 17.7272010074526 87.6079238620986 3727201.83217847 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 17:22:59 2020-Jan-28 17:23
2092-Aug-21 08:49 00:02 Jupiter 1.9383341829985 1.93833377999403 1.93833458600297 3.98486196552763 3.87364884129714 2485380.867257020 1.50628104761685 57.8945871478366 17.60307560995 87.4651685402122 3504122.45907281 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 17:22:59 2020-Jan-28 17:23
2164-Nov-17 02:07 00:03 Jupiter 1.97761502515296 1.97761441813494 1.97761563217268 4.26026842907061 4.15851860330116 2511765.588154501 2.78904316081293 145.434986193847 20.2630743400709 82.4282944228892 3626227.16258496 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 17:22:59 2020-Jan-28 17:23
2175-Mar-04 19:31 00:03 Jupiter 1.95486528603779 1.95486474379215 1.95486582828354 3.78312079898988 3.66680024930369 2515525.313538958 2.99141751890546 56.9280707914575 22.7599848351418 72.2417809713677 3495785.0901059 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 17:22:59 2020-Jan-28 17:23

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