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 ]  
185492 (2007 HA8)
Classification: Jupiter Trojan          SPK-ID: 2185492
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04173186469605601 4.4745e-08  
a 5.273797330015122 1.3233e-07 au
q 5.053711933404509 2.3774e-07 au
i 19.07348475087361 7.9856e-06 deg
node 196.0240419555652 1.646e-05 deg
peri 313.5612358808111 0.00010894 deg
M 80.53057082998966 0.00010471 deg
tp 2458010.940624923009
(2017-Sep-14.44062492)
0.0013002 TDB
period 4423.678751511495
12.11
0.0001665
4.559e-07
d
yr
n .08138023130115273 3.063e-09 deg/d
Q 5.493882726625735 1.3785e-07 au
  Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      8771 days (24.01 yr)  
   first obs. used      1996-04-21  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55804  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 04:49:21  

Additional Information
 Earth MOID = 4.0853 au 
 Jupiter MOID = .33074 au 
 T_jup = 2.888 
[ 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 12.6   n/a MPO436916  
diameter diameter 12.094 km 0.972 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
rotation period rot_per 295.352 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.]
geometric albedo albedo 0.084   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

185492 (2007 HA8)          Discovered 2007-Apr-18 by LONEOS at Anderson Mesa
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-03 01:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin