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 ]  
392149 (2009 HQ40)
Classification: Main-belt Asteroid          SPK-ID: 2392149
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342428826332225 5.3201e-08  
a 3.191569952152067 6.0186e-08 au
q 2.763124401649597 1.7889e-07 au
i 12.8039772169292 8.1158e-06 deg
node 160.0451957895901 2.6849e-05 deg
peri 127.163860876922 4.1713e-05 deg
M 262.4879926402797 3.2257e-05 deg
tp 2459564.605812113368
(2021-Dec-16.10581211)
0.00019361 TDB
period 2082.595752661112
5.70
5.891e-05
1.613e-07
d
yr
n .1728611995582902 4.8897e-09 deg/d
Q 3.620015502654536 6.8265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      5304 days (14.52 yr)  
   first obs. used      2005-09-13  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:24  

Additional Information
 Earth MOID = 1.76984 au 
 Jupiter MOID = 1.77587 au 
 T_jup = 3.144 
[ 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 16.0   n/a MPO423457  

392149 (2009 HQ40)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 HQ40 = 2010 GT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-01 16:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin