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 ]  
79506 (1998 HG7)
Classification: Main-belt Asteroid          SPK-ID: 2079506
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .22918539409028 4.9485e-08  
a 2.280783921752387 1.3355e-08 au
q 1.758061559810792 1.0828e-07 au
i 24.10722106432919 6.7671e-06 deg
node 47.92656571033348 1.2494e-05 deg
peri 249.1783314355135 2.0941e-05 deg
M 88.98477081605147 2.1335e-05 deg
tp 2458689.516156690194
(2019-Jul-25.01615669)
7.2891e-05 TDB
period 1258.127458944193
3.44
1.105e-05
3.025e-08
d
yr
n .2861395301729667 2.5132e-09 deg/d
Q 2.803506283693982 1.6416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      8131 days (22.26 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:35:07  

Additional Information
 Earth MOID = .862424 au 
 Jupiter MOID = 2.56349 au 
 T_jup = 3.458 
[ 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 14.6   n/a MPO395716  
rotation period rot_per 10.273 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

79506 (1998 HG7)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 HG7 = 1999 XR219 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-25 19:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin