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 ]  
379946 (2012 MD9)
Classification: Main-belt Asteroid          SPK-ID: 2379946
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12661823176888 4.5575e-08  
a 2.31061756736406 1.7674e-08 au
q 2.018051256690311 1.1102e-07 au
i 5.950185893054477 6.0727e-06 deg
node 229.5195405222695 4.1634e-05 deg
peri 68.96146247354298 5.1012e-05 deg
M 306.0358710340597 2.5669e-05 deg
tp 2458792.806163581982
(2019-Nov-05.30616358)		 9.1003e-05 TDB
period 1282.893288858762
3.51		 1.472e-05
4.03e-08		 d
yr
n .2806157013419637 3.2197e-09 deg/d
Q 2.603183878037808 1.9912e-08 au
   Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      6159 days (16.86 yr)  
   first obs. used      2002-09-13  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:40  

Additional Information
 Earth MOID = 1.01082 au 
 Jupiter MOID = 2.57405 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 17.8   n/a MPO339192  

379946 (2012 MD9)          Discovered 2005-Jun-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2012 MD9 = 2005 MF44 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-10 00:55 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin