Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
21324 (1997 AY5)
Classification: Main-belt Asteroid          SPK-ID: 2021324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513602862400145 4.7133e-08  
a 2.56204730884717 1.2043e-08 au
q 2.174255094819604 1.2189e-07 au
i 5.909207995688684 4.6347e-06 deg
node 276.7199887911561 6.6528e-05 deg
peri 184.7067439639741 7.0677e-05 deg
M 278.7019571595261 2.4968e-05 deg
tp 2459538.764742895110
(2021-Nov-20.26474290)
0.00010451 TDB
period 1497.8873191473
4.10
1.0562e-05
2.892e-08
d
yr
n .2403385057061146 1.6946e-09 deg/d
Q 2.949839522874737 1.3866e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:01  

Additional Information
 Earth MOID = 1.19102 au 
 Jupiter MOID = 2.20358 au 
 T_jup = 3.411 
[ show covariance matrix ]

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 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

[ show close-approach data ]
Alternate Designations
 1997 AY5 = 1999 LZ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-13 04:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin