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 ]  
249451 (2009 HL5)
Classification: Main-belt Asteroid          SPK-ID: 2249451
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3177633470259514 7.3157e-08  
a 2.621462266241937 2.2697e-08 au
q 1.788457642418663 1.8796e-07 au
i 10.77036786955927 1.1225e-05 deg
node 184.0916075063057 2.5047e-05 deg
peri 126.4352472152197 2.9287e-05 deg
M 148.8453393030809 1.6122e-05 deg
tp 2458359.516894787626
(2018-Aug-29.01689479)
6.5006e-05 TDB
period 1550.293203380661
4.24
2.0134e-05
5.512e-08
d
yr
n .2322141380836623 3.0158e-09 deg/d
Q 3.45446689006521 2.9909e-08 au
  Orbit Determination Parameters
   # obs. used (total)      284  
   data-arc span      9598 days (26.28 yr)  
   first obs. used      1993-10-20  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5652  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:23:48  

Additional Information
 Earth MOID = .799296 au 
 Jupiter MOID = 1.98316 au 
 T_jup = 3.307 
[ 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 16.3   n/a MPO460091  
diameter diameter 2.432 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.090   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249451 (2009 HL5)          Discovered 2009-Apr-17 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 HL5 = 1993 US8 = 2001 KL56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-14 17:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin