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 ]  
441772 (2009 DE4)
Classification: Main-belt Asteroid          SPK-ID: 2441772
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06219499749390994 6.787e-08  
a 2.622879223445058 4.7241e-08 au
q 2.459749256716064 1.8599e-07 au
i 5.460014266808813 8.149e-06 deg
node 122.3190263594933 8.8192e-05 deg
peri 316.3094209377543 0.00012577 deg
M 289.2686187149243 9.7604e-05 deg
tp 2459305.342493166661
(2021-Mar-31.84249317)
0.00042441 TDB
period 1551.55032386104
4.25
4.1918e-05
1.148e-07
d
yr
n .2320259900459679 6.2686e-09 deg/d
Q 2.786009190174052 5.018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      5293 days (14.49 yr)  
   first obs. used      2003-10-24  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6133  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:03:23  

Additional Information
 Earth MOID = 1.47891 au 
 Jupiter MOID = 2.35077 au 
 T_jup = 3.395 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO440828  

441772 (2009 DE4)          Discovered 2009-Jan-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-08 10:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin