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 ]  
441814 (2009 KP23)
Classification: Main-belt Asteroid          SPK-ID: 2441814
[ 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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09284620022240593 6.1181e-08  
a 3.012029499101147 6.4867e-08 au
q 2.732374005151809 1.7936e-07 au
i 11.31548694235233 6.1125e-06 deg
node 93.89045643436704 3.8274e-05 deg
peri 223.403841899852 5.6845e-05 deg
M 250.4367833238759 4.4163e-05 deg
tp 2459181.598202105687
(2020-Nov-28.09820211)		 0.00024359 TDB
period 1909.357529876492
5.23		 6.168e-05
1.689e-07		 d
yr
n .1885450966447791 6.0908e-09 deg/d
Q 3.291684993050485 7.089e-08 au
   Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4530 days (12.40 yr)  
   first obs. used      2006-12-10  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:04  

Additional Information
 Earth MOID = 1.72966 au 
 Jupiter MOID = 1.94972 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457370.5 (2015-Dec-14.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09226564257703004 6.135e-08  
q 2.735672380152086 1.7978e-07 au
tp 2457274.345730143152
(2015-Sep-08.84573014)		 0.00021884 TDB
node 93.90119392963732 3.8283e-05 deg
peri 223.8723715458594 5.6991e-05 deg
i 11.31247808689688 6.1106e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4530 days (12.40 yr)  
   first obs. used      2006-12-10  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57183  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:04  

Additional Information
 Jupiter MOID = 1.94972 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.763770734652489E-15 -1.045073382064063E-14 3.713112027094044E-12 5.252188849369247E-14 8.025280349040421E-13 2.958734575084705E-15
q -1.045073382064063E-14 3.231926936143216E-14 -7.290509939614767E-12 -1.499153707547189E-13 -1.619242998759338E-12 7.611115259193361E-16
tp 3.713112027094044E-12 -7.290509939614767E-12 4.789149246576365E-8 1.622228919299209E-11 9.326917737682418E-9 3.800678093076194E-11
node 5.252188849369247E-14 -1.499153707547189E-13 1.622228919299209E-11 1.465564044082698E-9 -1.431571475535552E-9 -4.776015833074843E-11
peri 8.025280349040421E-13 -1.619242998759338E-12 9.326917737682418E-9 -1.431571475535552E-9 3.247944386089788E-9 5.420862149397857E-11
i 2.958734575084705E-15 7.611115259193361E-16 3.800678093076194E-11 -4.776015833074843E-11 5.420862149397857E-11 3.733950231806082E-11

[ 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 16.1   n/a MPO434639  

441814 (2009 KP23)          Discovered 2009-Mar-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ 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 2019-Dec-05 20:09 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin