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294597 (2008 AY1)
Classification: Main-belt Asteroid          SPK-ID: 2294597
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2054186568385631 5.6586e-08  
a 2.628976941887886 2.2017e-08 au
q 2.088936029625724 1.5256e-07 au
i 13.00530999028081 5.9879e-06 deg
node 276.1686605887522 3.1884e-05 deg
peri 180.3383167095278 3.7477e-05 deg
M 341.048063630535 2.0369e-05 deg
tp 2459082.465233654065
(2020-Aug-20.96523365)
8.8629e-05 TDB
period 1556.964076927002
4.26
1.9559e-05
5.355e-08
d
yr
n .2312192075173218 2.9046e-09 deg/d
Q 3.169017854150049 2.654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      10850 days (29.71 yr)  
   first obs. used      1991-02-07  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:52:31  

Additional Information
 Earth MOID = 1.10576 au 
 Jupiter MOID = 2.02819 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457468.5 (2016-Mar-21.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2033782891142437 5.6597e-08  
q 2.094944086954752 1.5238e-07 au
tp 2457525.122992688826
(2016-May-16.62299269)
8.1596e-05 TDB
node 276.2706769716245 3.1937e-05 deg
peri 180.2916625511855 3.7671e-05 deg
i 12.98851439060525 5.9822e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      10850 days (29.71 yr)  
   first obs. used      1991-02-07  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:52:31  

Additional Information
 Jupiter MOID = 2.02819 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.203206178259063E-15 -8.567788199180723E-15 -4.24653438939351E-14 7.784774001241542E-15 1.412092006563761E-13 5.369658502192739E-16
q -8.567788199180723E-15 2.321869726557651E-14 5.724861037369893E-13 -1.982145060993251E-14 -2.801144766730508E-13 1.737881061889993E-15
tp -4.24653438939351E-14 5.724861037369893E-13 6.657828562849439E-9 -3.044380221745553E-11 1.677200926923835E-9 2.101382870083452E-11
node 7.784774001241542E-15 -1.982145060993251E-14 -3.044380221745553E-11 1.019969811487414E-9 -9.999912664980774E-10 -6.909105707196921E-12
peri 1.412092006563761E-13 -2.801144766730508E-13 1.677200926923835E-9 -9.999912664980774E-10 1.419130622750984E-9 1.164416367479955E-11
i 5.369658502192739E-16 1.737881061889993E-15 2.101382870083452E-11 -6.909105707196921E-12 1.164416367479955E-11 3.578652527201062E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO300293  
diameter diameter 3.977 km 0.579 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

294597 (2008 AY1)          Discovered 2008-Jan-05 by Lowe, A. at Mayhill
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1948-Apr-20 06:55 00:02 Iris 0.0466044342105253 0.0465871641164912 0.0466217083833489 4.67975854039776 4.67975851403915 2432661.788370966 1.86863736874321 1103.34571358027 75.3649890880638 38.8138730425263 58168.2988795542 T 17 CATAB v2.0f-lin.ifort 2020-Nov-11 19:52:32 2020-Nov-11 19:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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