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2308 Schilt (1967 JM)
Classification: Main-belt Asteroid          SPK-ID: 2002308
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725641019593747 4.3193e-08  
a 2.549198922318322 1.0505e-08 au
q 2.109298699572655 1.1116e-07 au
i 14.17298235786843 3.9903e-06 deg
node 34.25013543755018 2.0158e-05 deg
peri 233.6780700644196 2.3738e-05 deg
M 359.846311269895 1.4773e-05 deg
tp 2459001.134663522121
6.1004e-05 TDB
period 1486.633846263821
n .2421578123656641 1.4969e-09 deg/d
Q 2.989099145063989 1.2318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2233  
   data-arc span      31648 days (86.65 yr)  
   first obs. used      1934-03-07  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:10:44  

Additional Information
 Earth MOID = 1.12685 au 
 Jupiter MOID = 2.1559 au 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO473796  
diameter diameter 17.719 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 9.759 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mazzone, F. (2012)]
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
geometric albedo albedo 0.177   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2308 Schilt           Discovered 1967 May 6 by C. U. Cesco and A. R. Klemola at the Yale-Columbia Southern Station, El Leoncito.
Named in honor of Jan Schilt, Columbia University astronomer who has made significant contributions to the study of galactic structure and dynamics and the problems of stellar luminosity calibrations. The cooperative venture by Schilt at Columbia and Brouwer at Yale, together with the Argentine astronomers at San Juan, led to the establishment of the Yale-Columbia Southern Station in the early 1960s.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6531Last Updated: 2006-03-21

Alternate Designations
 1967 JM = 1926 GP = 1930 DR = 1972 TX7 = 1976 UH12 = 1980 VF = 1981 YM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Nov-29 19:49 UT
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