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 ]  
295339 (2008 HJ12)
Classification: Main-belt Asteroid          SPK-ID: 2295339
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1727534738545037 5.4957e-08  
a 2.415193092704359 2.1717e-08 au
q 1.997960095910279 1.3867e-07 au
i 1.30736075303578 6.5134e-06 deg
node 43.81577941746478 0.00038947 deg
peri 216.3358810837391 0.0003908 deg
M 56.17837370788371 3.2156e-05 deg
tp 2458786.559564352499
(2019-Oct-30.05956435)
0.00012178 TDB
period 1370.964514451443
3.75
1.8491e-05
5.063e-08
d
yr
n .2625888534715611 3.5418e-09 deg/d
Q 2.832426089498439 2.5469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      7018 days (19.21 yr)  
   first obs. used      2000-02-06  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61125  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:47:28  

Additional Information
 Earth MOID = .982794 au 
 Jupiter MOID = 2.23158 au 
 T_jup = 3.496 
[ 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 17.8   n/a MPO471114  

295339 (2008 HJ12)          Discovered 2008-Apr-24 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-14 12:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin