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JPL Small-Body Database Browser
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2366 Aaryn (1981 AC1)
Classification: Main-belt Asteroid          SPK-ID: 2002366
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268092217858764 2.8392e-08  
a 2.240395578809935 6.545e-09 au
q 1.956292758968529 6.3113e-08 au
i 1.083548974592905 3.9147e-06 deg
node 308.1471967686425 0.00018934 deg
peri 111.2526034174628 0.00019018 deg
M 319.8424758638221 1.8765e-05 deg
tp 2459137.131210364783
(2020-Oct-14.63121036)
6.4051e-05 TDB
period 1224.857278663979
3.35
5.3674e-06
1.47e-08
d
yr
n .2939117938644021 1.2879e-09 deg/d
Q 2.52449839865134 7.375e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2053  
   data-arc span      31276 days (85.63 yr)  
   first obs. used      1934-02-09  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:19:55  

Additional Information
 Earth MOID = .969015 au 
 Jupiter MOID = 2.76055 au 
 T_jup = 3.624 
[ 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 13.9   n/a MPO337267  

2366 Aaryn (1981 AC1)          Discovered 1981-Jan-10 by Thomas, N. G. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 AC1 = 1934 CC1 = 1949 PJ = 1971 DR = 1973 YM1 = 1976 QP1 = 1976 SM8 = 1978 ET2 = 1979 OK7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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