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 ]  
382278 (2012 TL221)
Classification: Main-belt Asteroid          SPK-ID: 2382278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04146898897361082 6.3965e-08  
a 3.084647092788821 6.1147e-08 au
q 2.956729896510481 2.0344e-07 au
i 11.71413501322504 1.2623e-05 deg
node 15.96830276162412 3.1612e-05 deg
peri 103.463465763473 0.00018591 deg
M 332.9471782840932 0.00017792 deg
tp 2458749.201970463701
(2019-Sep-22.70197046)
0.00097814 TDB
period 1978.821652288332
5.42
5.884e-05
1.611e-07
d
yr
n .1819264508166726 5.4095e-09 deg/d
Q 3.212564289067161 6.3683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      5414 days (14.82 yr)  
   first obs. used      2004-02-13  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59959  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:50:37  

Additional Information
 Earth MOID = 1.99883 au 
 Jupiter MOID = 1.82276 au 
 T_jup = 3.193 
[ 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 15.8   n/a MPO460499  

382278 (2012 TL221)          Discovered 2004-Feb-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-09 00:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin