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 ]  
379159 (2009 QW12)
Classification: Main-belt Asteroid          SPK-ID: 2379159
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 .1957414807093845 6.83e-08  
a 2.38816894109644 6.6177e-08 au
q 1.92070521638206 1.6498e-07 au
i 1.648827568527527 1.056e-05 deg
node 237.2143818164012 0.00025879 deg
peri 63.13466456841883 0.00026678 deg
M .3284052613520841 9.2698e-05 deg
tp 2458999.270287461481
(2020-May-29.77028746)
0.00034706 TDB
period 1348.018944776202
3.69
5.6031e-05
1.534e-07
d
yr
n .2670585613021686 1.11e-08 deg/d
Q 2.85563266581082 7.9131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      5989 days (16.40 yr)  
   first obs. used      2002-11-13  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:03  

Additional Information
 Earth MOID = .905804 au 
 Jupiter MOID = 2.36671 au 
 T_jup = 3.507 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456966.5 (2014-Nov-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950701397010209 6.8156e-08  
q 1.923129326607205 1.6586e-07 au
tp 2456301.797082897783
(2013-Jan-09.29708290)
0.00024838 TDB
node 237.4318936631497 0.00025887 deg
peri 62.69607811272799 0.00026683 deg
i 1.648484396973007 1.0554e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      5989 days (16.40 yr)  
   first obs. used      2002-11-13  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:03  

Additional Information
 Jupiter MOID = 2.36671 au 
 T_jup = 3.507 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.645233067118544E-15 -1.070677458613416E-14 3.611531615234688E-12 -1.153946415366486E-14 7.416963721162334E-13 2.803501347002139E-16
q -1.070677458613416E-14 2.750861299495163E-14 2.618534754646309E-12 4.275771136375272E-14 1.227092766790377E-12 -2.55956688880259E-16
tp 3.611531615234688E-12 2.618534754646309E-12 6.169200025738796E-8 4.052191101148627E-11 1.608828508560767E-8 -2.236149998248224E-12
node -1.153946415366486E-14 4.275771136375272E-14 4.052191101148627E-11 6.701240409051045E-8 -6.697239899498892E-8 -8.419623968601384E-10
peri 7.416963721162334E-13 1.227092766790377E-12 1.608828508560767E-8 -6.697239899498892E-8 7.119816399802165E-8 8.410911384309587E-10
i 2.803501347002139E-16 -2.55956688880259E-16 -2.236149998248224E-12 -8.419623968601384E-10 8.410911384309587E-10 1.113832325154782E-10

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 17.7   n/a MPO434345  

379159 (2009 QW12)          Discovered 2009-Aug-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ 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-Apr-09 13:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin