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9963 Sandage (1992 AN)
Classification: Main-belt Asteroid          SPK-ID: 2009963
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2810023452966685 6.7544e-08  
a 2.341088381992411 1.6661e-08 au
q 1.68323705610576 1.6404e-07 au
i 23.46094294768847 6.1619e-06 deg
node 116.9680981171032 1.6635e-05 deg
peri 241.1650141487048 1.9559e-05 deg
M 22.46752438692951 1.5282e-05 deg
tp 2457518.845925173736
5.5014e-05 JED
period 1308.353623265932
n .2751549685026 2.9374e-09 deg/d
Q 2.998939707879061 2.1343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      9692 days (26.54 yr)  
   first obs. used      1989-02-04  
   last obs. used      2015-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49897  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:20:27  

Additional Information
 Earth MOID = .772145 au 
 Jupiter MOID = 2.61881 au 
 T_jup = 3.404 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO309229  
rotation period rot_per 4.65053 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]
[Clark, M. (2016) Minor Planet Bul. 43, 2-5.]

9963 Sandage           Discovered 1992 Jan. 9 by E. F. Helin at Palomar.
Allan Sandage (b. 1926), a distinguished American astronomer of Palomar and Mt. Wilson fame, is an international authority in stellar astronomy and observational cosmology. The name was suggested by S. Kientz and endorsed by the discoverer, who first met Sandage at Palomar in the early 1970s.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1992 AN = 1976 NH = 1989 CK6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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