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21324 (1997 AY5)
Classification: Main-belt Asteroid          SPK-ID: 2021324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1514563210611591 4.7147e-08  
a 2.562025151884723 1.1962e-08 au
q 2.173990247914105 1.2201e-07 au
i 5.909190886184229 4.6346e-06 deg
node 276.7190827383714 6.653e-05 deg
peri 184.7322367547137 7.0678e-05 deg
M 325.7963269511807 2.5045e-05 deg
tp 2459538.812732001419
(2021-Nov-20.31273200)
0.00010446 TDB
period 1497.867888264109
4.10
1.049e-05
2.872e-08
d
yr
n .2403416234640072 1.6832e-09 deg/d
Q 2.95006005585534 1.3773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      810  
   data-arc span      8802 days (24.10 yr)  
   first obs. used      1996-11-01  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53501  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:13:09  

Additional Information
 Earth MOID = 1.19115 au 
 Jupiter MOID = 2.20348 au 
 T_jup = 3.411 
[ 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 15.28   n/a E2021B10  
diameter diameter 2.645 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21324 (1997 AY5)          Discovered 1997-Jan-02 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AY5 = 1999 LZ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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