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1717 Arlon (1954 AC)
Classification: Main-belt Asteroid          SPK-ID: 2001717
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.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
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 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128951712865069 3.6242e-08  
a 2.195433987841561 6.5178e-09 AU
q 1.912329014627202 8.1154e-08 AU
i 6.189455798428049 5.8227e-06 deg
node 340.4972992090265 3.3096e-05 deg
peri 116.0703729323692 4.0794e-05 deg
M 341.5956719386132 2.3732e-05 deg
tp 2457261.243032153661
7.8411e-05 JED
period 1188.17114661181
n .3029866539231965 1.3493e-09 deg/d
Q 2.478538961055919 7.3583e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      30977 days (84.81 yr)  
   first obs. used      1930-12-20  
   last obs. used      2015-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45678  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 15:55:01  

Additional Information
 Earth MOID = .939047 AU 
 T_jup = 3.651 
[ 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 12.2 mag n/a MPO265966  
rotation period rot_per 5.1484 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005)]
[Behrend, R. (2006) Observatoire de Geneve web site,]
[Behrend, R. (2008) Observatoire de Geneve web site,]
[Brinsfield, J.W. (2009) Minor Planet Bul. 36, 64-66.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011)]
[Oey, J. (2014) Minor Planet Bul. (2014) Minor Planet Bul. 41, 276-281.]
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)

1717 Arlon (1954 AC)          Discovered 1954-Jan-08 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1954 AC = 1930 YU = 1941 BJ = 1946 UB = 1951 GQ = 1954 CE = 1977 FQ3 = 1978 PC5 = A915 CC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2015-Nov-27 04:34 UT
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