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 ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09271906614674788 5.9098e-08  
a 3.015282354147482 5.5795e-08 au
q 2.73570819010216 1.7885e-07 au
i 11.30859708496717 6.0858e-06 deg
node 93.87524784393445 3.5827e-05 deg
peri 222.1882227368468 5.2837e-05 deg
M 4.563483070545 3.994e-05 deg
tp 2459176.257112335056
(2020-Nov-22.75711233)		 0.00021193 TDB
period 1912.451393916848
5.24		 5.3082e-05
1.453e-07		 d
yr
n .1882400782289647 5.2248e-09 deg/d
Q 3.294856518192804 6.0969e-08 au
   Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      4914 days (13.45 yr)  
   first obs. used      2006-12-10  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57208  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:04  

Additional Information
 Earth MOID = 1.73103 au 
 Jupiter MOID = 1.94247 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457456.5 (2016-Mar-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09229271265140603 5.9321e-08  
q 2.735603599890228 1.7917e-07 au
tp 2457274.225276366985
(2015-Sep-08.72527637)		 0.0002005 TDB
node 93.89816497618476 3.5812e-05 deg
peri 223.8470668313574 5.2853e-05 deg
i 11.31232378318565 6.0905e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      4914 days (13.45 yr)  
   first obs. used      2006-12-10  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57208  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:04  

Additional Information
 Jupiter MOID = 1.94247 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.519020201353972E-15 -1.022259165198481E-14 2.348474271156086E-12 3.833066956500711E-14 5.549244098632574E-13 1.440235374199434E-15
q -1.022259165198481E-14 3.210331481370349E-14 -6.032859416478563E-12 -1.136475549839676E-13 -1.41371647033273E-12 1.339589429201272E-15
tp 2.348474271156086E-12 -6.032859416478563E-12 4.019847112888291E-8 8.23742502760052E-12 7.861314710284832E-9 2.696790577628241E-11
node 3.833066956500711E-14 -1.136475549839676E-13 8.23742502760052E-12 1.282515373270102E-9 -1.253991470674469E-9 -4.131758955632969E-11
peri 5.549244098632574E-13 -1.41371647033273E-12 7.861314710284832E-9 -1.253991470674469E-9 2.793481292253318E-9 4.579107731896278E-11
i 1.440235374199434E-15 1.339589429201272E-15 2.696790577628241E-11 -4.131758955632969E-11 4.579107731896278E-11 3.709479227136123E-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 16.34   n/a E2021B25  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2001-Dec-09 11:44 00:01 Jupiter 1.95478315894336 1.95478259071523 1.95478372717216 3.88231040799444 3.76904746446942 2452252.988884196 1.23134988844014 109.955561555955 19.8138327436567 -81.0597336036867 2674445.89999763 T 11 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:05 2021-Apr-14 14:42
2048-Oct-18 09:58 00:03 Jupiter 1.95390270327509 1.95390207023792 1.95390333631238 3.98356225612204 3.87321086760281 2469367.915421879 2.58913025959758 115.828867518492 28.3434608986892 87.2328472947577 2616011.01758787 T 11 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:05 2021-Apr-14 14:42
2180-Jan-25 04:01 00:13 Jupiter 1.9733467941579 1.97334499775317 1.97334859068377 3.83918660337423 3.72570676115762 2517312.667511458 12.9935215270003 814.967889482411 19.0388059533344 -82.9815496507143 2700215.72558055 T 11 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:05 2021-Apr-14 14:42
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 04:10 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin