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 ]  
21170 (1994 AL10)
Classification: Main-belt Asteroid          SPK-ID: 2021170
[ 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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425322983222563 3.6016e-08  
a 2.258999289119626 6.508e-09 au
q 1.937018928533063 8.2484e-08 au
i 5.588413436386332 3.8339e-06 deg
node 97.31174630634678 3.8772e-05 deg
peri 101.5628967470244 4.1315e-05 deg
M 331.8341030340229 1.5872e-05 deg
tp 2459493.527234628111
(2021-Oct-06.02723463)		 5.4872e-05 TDB
period 1240.145290182429
3.40		 5.3592e-06
1.467e-08		 d
yr
n .2902885676782622 1.2545e-09 deg/d
Q 2.58097964970619 7.4356e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1201  
   data-arc span      9986 days (27.34 yr)  
   first obs. used      1994-01-08  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54878  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:03  

Additional Information
 Earth MOID = .944469 au 
 Jupiter MOID = 2.38698 au 
 T_jup = 3.602 
[ 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 15.39   n/a MPCxxxxx  

21170 (1994 AL10)          Discovered 1994-Jan-08 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 AL10 = 1999 TA240 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-27 03:53 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin