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 ]  
379876 (2012 HX44)
Classification: Main-belt Asteroid          SPK-ID: 2379876
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1565357306527076 5.5477e-08  
a 2.305136536190339 1.405e-08 au
q 1.944300304243533 1.3044e-07 au
i 4.954976602542221 8.389e-06 deg
node 207.0423439443382 5.7497e-05 deg
peri 75.90365845718873 6.9131e-05 deg
M 65.3490843751765 3.0624e-05 deg
tp 2458768.450618874203
(2019-Oct-11.95061887)
0.00010922 TDB
period 1278.331257492259
3.50
1.1687e-05
3.2e-08
d
yr
n .2816171457046455 2.5747e-09 deg/d
Q 2.665972768137145 1.6249e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      7202 days (19.72 yr)  
   first obs. used      1999-10-14  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:14:38  

Additional Information
 Earth MOID = .935252 au 
 Jupiter MOID = 2.47433 au 
 T_jup = 3.567 
[ 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 17.9   n/a MPO476778  

379876 (2012 HX44)          Discovered 1999-Oct-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2012 HX44 = 1999 TQ85 = 2002 RZ293 = 2008 EE81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-27 17:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin