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 ]  
379928 (2012 KW44)
Classification: Main-belt Asteroid          SPK-ID: 2379928
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2045898490938867 1.1492e-07  
a 2.614542849464895 4.5262e-08 au
q 2.079633922443371 3.2364e-07 au
i 13.72443072455627 1.3423e-05 deg
node 220.4044737448699 2.6283e-05 deg
peri 31.58736070067184 4.9267e-05 deg
M 225.3521399532492 4.0714e-05 deg
tp 2459178.049254261763
(2020-Nov-24.54925426)
0.00018528 TDB
period 1544.15919764372
4.23
4.0098e-05
1.098e-07
d
yr
n .2331365836821327 6.054e-09 deg/d
Q 3.149451776486418 5.4523e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      4855 days (13.29 yr)  
   first obs. used      2004-08-09  
   last obs. used      2017-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:42:33  

Additional Information
 Earth MOID = 1.07854 au 
 Jupiter MOID = 1.90575 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457162.5 (2015-May-20.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051209822754614 1.1496e-07  
q 2.07834035522745 3.2483e-07 au
tp 2457632.868344824049
(2016-Sep-01.36834482)
0.00015725 TDB
node 220.474734037815 2.6314e-05 deg
peri 31.36201126672546 4.9029e-05 deg
i 13.71827767600141 1.3417e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      4855 days (13.29 yr)  
   first obs. used      2004-08-09  
   last obs. used      2017-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:42:33  

Additional Information
 Jupiter MOID = 1.90575 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.321584769815223E-14 -3.719781114495004E-14 -1.46694637547447E-11 1.186681847563878E-13 -3.671425813827449E-12 -1.505923198309943E-13
q -3.719781114495004E-14 1.055134958558826E-13 4.195384288026492E-11 -3.291435832623523E-13 1.043353535498377E-11 4.241796651524963E-13
tp -1.46694637547447E-11 4.195384288026492E-11 2.472870387581435E-8 -1.124194764672214E-10 6.500930165841253E-9 1.832003269661012E-10
node 1.186681847563878E-13 -3.291435832623523E-13 -1.124194764672214E-10 6.924049265035039E-10 -6.979526821069938E-10 -1.551720872217176E-10
peri -3.671425813827449E-12 1.043353535498377E-11 6.500930165841253E-9 -6.979526821069938E-10 2.403822897835292E-9 1.958490774980165E-10
i -1.505923198309943E-13 4.241796651524963E-13 1.832003269661012E-10 -1.551720872217176E-10 1.958490774980165E-10 1.800123068201048E-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 16.5   n/a MPO427888  

379928 (2012 KW44)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
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-Jan-23 23:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin