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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268092220545608 2.8378e-08  
a 2.240395579623053 6.4258e-09 au
q 1.956292759076577 6.3106e-08 au
i 1.083549138703409 3.8742e-06 deg
node 308.1472016367293 0.00018926 deg
peri 111.2526005276323 0.00019008 deg
M 319.8424732875037 1.83e-05 deg
tp 2459137.131219204783
(2020-Oct-14.63121920)
6.2448e-05 TDB
period 1224.857279330794
3.35
5.2696e-06
1.443e-08
d
yr
n .2939117937043959 1.2645e-09 deg/d
Q 2.524498400169529 7.2407e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2080  
   data-arc span      31586 days (86.48 yr)  
   first obs. used      1934-02-09  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:49:51  

Additional Information
 Earth MOID = .969015 au 
 Jupiter MOID = 2.76055 au 
 T_jup = 3.624 
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Orbital Elements at Epoch 2456445.5 (2013-Jun-02.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269810686789871 2.8542e-08  
q 1.9560737905807 6.3485e-08 au
tp 2456685.602815154934
(2014-Jan-28.10281515)
5.9433e-05 TDB
node 308.3016542885331 0.00018941 deg
peri 110.8216281903831 0.00019021 deg
i 1.082970842639124 3.8727e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2080  
   data-arc span      31586 days (86.48 yr)  
   first obs. used      1934-02-09  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:49:51  

Additional Information
 Jupiter MOID = 2.76055 au 
 T_jup = 3.624 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.146371189062383E-16 -1.804987848452296E-15 -3.076214891133734E-13 -1.656795013528256E-15 -1.019240707891952E-13 -2.038501214782079E-17
q -1.804987848452296E-15 4.030389675106046E-15 7.454985668971927E-13 3.607784139203582E-15 2.421370169885761E-13 6.850202047502493E-17
tp -3.076214891133734E-13 7.454985668971927E-13 3.532287774803101E-9 -1.368998781921199E-12 1.045111231574468E-9 7.175575435582105E-14
node -1.656795013528256E-15 3.607784139203582E-15 -1.368998781921199E-12 3.587717753793074E-8 -3.587068434933093E-8 2.294094892322754E-10
peri -1.019240707891952E-13 2.421370169885761E-13 1.045111231574468E-9 -3.587068434933093E-8 3.617973976813593E-8 -2.293496893418116E-10
i -2.038501214782079E-17 6.850202047502493E-17 7.175575435582105E-14 2.294094892322754E-10 -2.293496893418116E-10 1.499790239445214E-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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