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 ]  
212221 (2005 JU9)
Classification: Main-belt Asteroid          SPK-ID: 2212221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378741770899254 9.1865e-08  
a 2.61008577884554 2.8892e-08 au
q 2.250222349953094 2.502e-07 au
i 5.98516630258965 8.2874e-06 deg
node 33.99799803447286 6.3425e-05 deg
peri 146.0223124396855 6.9198e-05 deg
M 325.2586942921212 3.7607e-05 deg
tp 2459545.136076721841
(2021-Nov-26.63607672)
0.00016283 TDB
period 1540.212335995419
4.22
2.5574e-05
7.002e-08
d
yr
n .2337340064007063 3.881e-09 deg/d
Q 2.969949207737986 3.2876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      9588 days (26.25 yr)  
   first obs. used      1994-10-08  
   last obs. used      2021-01-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61208  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:37:47  

Additional Information
 Earth MOID = 1.25657 au 
 Jupiter MOID = 1.98949 au 
 T_jup = 3.389 
[ 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 17.00   n/a MPCxxxxx  

212221 (2005 JU9)          Discovered 2005-May-04 by Veillet, C. at Mauna Kea
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1939-Oct-06 12:01 00:03 Jupiter 1.98473528018355 1.98473459667269 1.98473596369667 2.72017351372942 2.55847746364677 2429543.000962621 3.47286723874766 323.058112563212 20.4840633655918 -87.4777018113133 1385774.57569642 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:37:48 2021-Apr-13 23:37
2070-Aug-27 06:33 00:03 Jupiter 1.99935423090324 1.99935342303749 1.99935503876865 2.84070657755564 2.68743702620594 2477350.773049159 2.55094720486986 158.440887780776 24.6453860392592 -87.3696480623778 1344766.52697753 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:37:48 2021-Apr-13 23:37
2129-Jun-27 10:07 00:05 Jupiter 1.98297653337613 1.98297583222217 1.98297723453477 2.71411982512616 2.55189192385269 2498838.921278664 5.27776206176436 422.127148570152 20.5325499855669 -86.7202487042729 1359966.5330608 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 23:37:48 2021-Apr-13 23:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-26 05:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin