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 ]  
215121 (1999 JB11)
Classification: Mars-crossing Asteroid          SPK-ID: 2215121
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2548904590277284 2.4348e-07  
a 1.842187029077539 4.2942e-09 au
q 1.372631131621038 4.4961e-07 au
i 37.10296768880253 4.5368e-05 deg
node 216.4880172928175 1.3902e-05 deg
peri 30.90836279958971 2.5343e-05 deg
M 346.8238298366132 2.0366e-05 deg
tp 2458633.926099462207
(2019-May-30.42609946)
5.172e-05 TDB
period 913.2696115167354
2.50
3.1933e-06
8.743e-09
d
yr
n .3941880858185142 1.3783e-09 deg/d
Q 2.31174292653404 5.3888e-09 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      7303 days (19.99 yr)  
   first obs. used      1999-05-14  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54944  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:21:46  

Additional Information
 Earth MOID = .398394 au 
 Jupiter MOID = 2.74193 au 
 T_jup = 3.742 
[ 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 18.4   n/a MPO300075  

215121 (1999 JB11)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1999 JB11 = 2004 HJ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin