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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268092226940205 2.8351e-08  
a 2.24039557855078 6.0836e-09 au
q 1.956292756707635 6.2963e-08 au
i 1.083549675743828 3.7016e-06 deg
node 308.1472140467035 0.0001871 deg
peri 111.252585150525 0.00018783 deg
M 319.8424770019773 1.6766e-05 deg
tp 2459137.131206468638
(2020-Oct-14.63120647)
5.7164e-05 TDB
period 1224.857278451454
3.35
4.9889e-06
1.366e-08
d
yr
n .2939117939153989 1.1971e-09 deg/d
Q 2.524498400393925 6.855e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2245  
   data-arc span      31676 days (86.72 yr)  
   first obs. used      1934-02-09  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:10:13  

Additional Information
 Earth MOID = .969015 au 
 Jupiter MOID = 2.76055 au 
 T_jup = 3.624 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456585.5 (2013-Oct-20.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270008793826938 2.8506e-08  
q 1.955971352646237 6.3328e-08 au
tp 2456685.666620156889
(2014-Jan-28.16662016)
5.5374e-05 TDB
node 308.3015795559742 0.00018726 deg
peri 110.8477886525273 0.00018798 deg
i 1.082963389050987 3.7002e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2245  
   data-arc span      31676 days (86.72 yr)  
   first obs. used      1934-02-09  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:10:13  

Additional Information
 Jupiter MOID = 2.76055 au 
 T_jup = 3.624 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.125750894392118E-16 -1.798984088053185E-15 -2.870662760635098E-13 -2.782762782136216E-15 -9.519601637958095E-14 -6.076244986355979E-17
q -1.798984088053185E-15 4.010439331933222E-15 6.59210032331798E-13 6.017882723676131E-15 2.16317147017916E-13 1.460341909243735E-16
tp -2.870662760635098E-13 6.59210032331798E-13 3.06626961245798E-9 -1.9398829106642E-12 9.19614863077236E-10 -2.368616163904317E-14
node -2.782762782136216E-15 6.017882723676131E-15 -1.9398829106642E-12 3.506617001446356E-8 -3.505994687794735E-8 1.977790396801332E-10
peri -9.519601637958095E-14 2.16317147017916E-13 9.19614863077236E-10 -3.505994687794735E-8 3.533516937383717E-8 -1.977494309241217E-10
i -6.076244986355979E-17 1.460341909243735E-16 -2.368616163904317E-14 1.977790396801332E-10 -1.977494309241217E-10 1.369156320643074E-11

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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