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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
22465 Karelandel (1997 AK18)
Classification: Main-belt Asteroid          SPK-ID: 2022465
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1831771535273309 5.1624e-08  
a 2.456174387152124 1.0144e-08 au
q 2.006259354346861 1.2364e-07 au
i 2.29537551766982 4.9442e-06 deg
node 24.4245013178657 0.00010203 deg
peri 27.80878997809689 0.00010285 deg
M 74.23500846164428 1.1422e-05 deg
tp 2458710.569779487587
(2019-Aug-15.06977949)
4.4142e-05 TDB
period 1406.00616269071
3.85
8.7099e-06
2.385e-08
d
yr
n .2560443969257282 1.5861e-09 deg/d
Q 2.906089419957386 1.2002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      9880 days (27.05 yr)  
   first obs. used      1993-01-16  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:42:14  

Additional Information
 Earth MOID = 1.01751 au 
 Jupiter MOID = 2.46177 au 
 T_jup = 3.468 
[ 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 15.7   n/a MPO502331  

22465 Karelanděl           Discovered 1997 Jan. 15 by M. Tichy and Z. Moravec at Klet.
Karel Anděl (1884-1948) was a teacher. In astronomy he was known as a moon cartographer, author of Mappa Selenographica (1926). He was one of the founders of the Czech Astronomical Society in 1917.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1997 AK18 = 1993 BT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-29 08:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin