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318 Magdalena
Classification: Main-belt Asteroid          SPK-ID: 2000318
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08468339133815971 3.3999e-08  
a 3.195414674133749 1.3327e-08 au
q 2.924816122796383 1.1133e-07 au
i 10.65428166970898 4.1981e-06 deg
node 161.5003218867586 2.0431e-05 deg
peri 296.2732243773306 3.2258e-05 deg
M 331.6363459025778 2.5137e-05 deg
tp 2458764.879987986143
(2019-Oct-08.37998799)
0.00014587 TDB
period 2086.360081523836
5.71
1.3053e-05
3.574e-08
d
yr
n .1725493136050912 1.0795e-09 deg/d
Q 3.466013225471116 1.4456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2821  
   data-arc span      46815 days (128.17 yr)  
   first obs. used      1891-09-24  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4455  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:05:15  

Additional Information
 Earth MOID = 1.9612 au 
 Jupiter MOID = 1.68522 au 
 T_jup = 3.163 
[ 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 9.4   n/a MPO324305  
diameter diameter 85 km n/a J.G. Williams (E-mail September 1990) based on assumed albedo of 0.048 for C-type
rotation period rot_per 42.65 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Martinez, L. (2015) Minor Planet Bull. 42, 239.]
[Pilcher, F. (2018) Posting on CALL web site: http://www.minorplanet.info/call.html]
geometric albedo albedo 0.054   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.685   0.037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.81 deg.
U-B UB 0.290   0.078 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.81 deg.
Tholen spectral type spec_T CXF   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

318 Magdalena          Discovered 1891-Sep-24 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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