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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205418643170064 6.2239e-08  
a 2.628976924239136 2.5857e-08 au
q 2.088936051536524 1.7172e-07 au
i 13.00531036129632 6.0436e-06 deg
node 276.1686540145668 3.3468e-05 deg
peri 180.3383005764319 3.9419e-05 deg
M 341.0480865268921 2.3776e-05 deg
tp 2459082.465133804237
(2020-Aug-20.96513380)
0.00010362 TDB
period 1556.964061248772
4.26
2.297e-05
6.289e-08
d
yr
n .2312192098456401 3.4112e-09 deg/d
Q 3.169017796941747 3.1169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      10517 days (28.79 yr)  
   first obs. used      1991-02-07  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5234  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:29:34  

Additional Information
 Earth MOID = 1.10576 au 
 Jupiter MOID = 2.02819 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457282.5 (2015-Sep-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034664708468158 6.218e-08  
q 2.095075601105652 1.7137e-07 au
tp 2457525.026800121788
(2016-May-16.52680012)
9.1729e-05 TDB
node 276.273829981379 3.3524e-05 deg
peri 180.2550542560536 3.9612e-05 deg
i 12.98793437196673 6.0373e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      10517 days (28.79 yr)  
   first obs. used      1991-02-07  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5234  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:29:34  

Additional Information
 Jupiter MOID = 2.02819 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.866383375772145E-15 -1.058690111497841E-14 -1.120925281698314E-12 1.163098943048984E-14 -5.702908078630304E-14 -3.961366926474554E-15
q -1.058690111497841E-14 2.936726314240911E-14 3.858179723124902E-12 -2.753144362953604E-14 3.195402812091691E-13 1.505807157358637E-14
tp -1.120925281698314E-12 3.858179723124902E-12 8.414189361104294E-9 -1.898991742738696E-11 1.981724135948145E-9 2.697008621347061E-11
node 1.163098943048984E-14 -2.753144362953604E-14 -1.898991742738696E-11 1.123847990998884E-9 -1.098446557271835E-9 -1.416039695767732E-11
peri -5.702908078630304E-14 3.195402812091691E-13 1.981724135948145E-9 -1.098446557271835E-9 1.569107298386076E-9 1.972768084230174E-11
i -3.961366926474554E-15 1.505807157358637E-14 2.697008621347061E-11 -1.416039695767732E-11 1.972768084230174E-11 3.644879713228948E-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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