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 ]  
295370 (2008 HK54)
Classification: Main-belt Asteroid          SPK-ID: 2295370
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04222809123820107 5.1666e-08  
a 3.124080375465798 4.1598e-08 au
q 2.992156424335155 1.5827e-07 au
i 19.02287839980911 8.5237e-06 deg
node 61.16724839876405 1.5627e-05 deg
peri 101.1090901778654 0.00010121 deg
M 133.4699408014533 9.8739e-05 deg
tp 2458252.739203851623
(2018-May-14.23920385)
0.00055573 TDB
period 2016.887735148261
5.52
4.0283e-05
1.103e-07
d
yr
n .1784928301790364 3.565e-09 deg/d
Q 3.256004326596441 4.3355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      7124 days (19.50 yr)  
   first obs. used      2000-11-26  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 05:17:54  

Additional Information
 Earth MOID = 2.04838 au 
 Jupiter MOID = 1.83276 au 
 T_jup = 3.129 
[ 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 15.9   n/a MPO437320  
diameter diameter 4.577 km 1.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295370 (2008 HK54)          Discovered 2008-Apr-29 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ 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-08 16:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin