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 ]  
344076 (1998 HJ3)
Classification: Apollo [NEO, PHA]          SPK-ID: 2344076
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7464939614749601 6.1707e-08  
a 1.985774190459051 5.6495e-08 au
q .5034057484285422 1.1539e-07 au
i 6.564358813387592 1.7234e-05 deg
node 223.62727402808 7.5495e-05 deg
peri 94.1181161121515 7.1293e-05 deg
M 294.1022047570164 4.2104e-05 deg
tp 2459187.594750961404
(2020-Dec-04.09475096)
0.00012721 TDB
period 1022.099602843343
2.80
4.3618e-05
1.194e-07
d
yr
n .3522161626895545 1.5031e-08 deg/d
Q 3.46814263248956 9.8668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      5326 days (14.58 yr)  
   first obs. used      1998-04-19  
   last obs. used      2012-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55129  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:23:14  

Additional Information
 Earth MOID = .0113014 au 
 Jupiter MOID = 1.95115 au 
 T_jup = 3.437 
[ 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 18.8   n/a MPO242127  

344076 (1998 HJ3)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ 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 2020-Aug-07 02:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin