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441814 (2009 KP23)
Classification: Main-belt Asteroid          SPK-ID: 2441814
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0930953649310573 5.9047e-08  
a 3.015921142764979 5.4057e-08 au
q 2.735152863375982 1.7892e-07 au
i 11.3141372642303 6.0903e-06 deg
node 93.88955499137623 3.5789e-05 deg
peri 222.5935337061864 5.2684e-05 deg
M 326.5826856374687 3.9467e-05 deg
tp 2459178.081386726857
(2020-Nov-24.58138673)
0.00021138 TDB
period 1913.059156344061
5.24
5.1434e-05
1.408e-07
d
yr
n .1881802759763977 5.0594e-09 deg/d
Q 3.296689422153976 5.909e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:52:20  

Additional Information
 Earth MOID = 1.73272 au 
 Jupiter MOID = 1.94347 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457456.5 (2016-Mar-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09229271287503343 5.9321e-08  
q 2.735603599284107 1.7917e-07 au
tp 2457274.225276270775
(2015-Sep-08.72527627)
0.0002005 TDB
node 93.8981650593698 3.5812e-05 deg
peri 223.8470667197199 5.2853e-05 deg
i 11.31232379209341 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:52:20  

Additional Information
 Jupiter MOID = 1.94347 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.519019708875634E-15 -1.022259052167227E-14 2.348473509153277E-12 3.833066147051062E-14 5.549242656951002E-13 1.440235467471374E-15
q -1.022259052167227E-14 3.210331322452509E-14 -6.032857956496871E-12 -1.136475258702373E-13 -1.413716178307108E-12 1.339587992157757E-15
tp 2.348473509153277E-12 -6.032857956496871E-12 4.019846792983581E-8 8.237438194875786E-12 7.861314067780856E-9 2.696790479807585E-11
node 3.833066147051062E-14 -1.136475258702373E-13 8.237438194875786E-12 1.282515347995066E-9 -1.25399144270723E-9 -4.131758942270655E-11
peri 5.549242656951002E-13 -1.413716178307108E-12 7.861314067780856E-9 -1.25399144270723E-9 2.793481143039987E-9 4.579107694517593E-11
i 1.440235467471374E-15 1.339587992157757E-15 2.696790479807585E-11 -4.131758942270655E-11 4.579107694517593E-11 3.709479232568573E-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

[ 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 1.95478316612696 1.95478259789938 1.95478373435532 3.88231015678256 3.76904720549579 2452252.988858121 1.23134825451874 109.955459139869 19.8138254139237 -81.0597424502449 2674446.14751178 T 10 CATAB v2.0f-lin.ifort 2020-Nov-12 08:52:21 2020-Nov-12 08:52
2048-Oct-18 09:58 00:03 Jupiter 1.95390268571394 1.95390205267999 1.95390331874801 3.98356210713886 3.87321071275072 2469367.915467612 2.58911030460132 115.828555304168 28.3433488359816 87.2329690693941 2616011.58352773 T 10 CATAB v2.0f-lin.ifort 2020-Nov-12 08:52:21 2020-Nov-12 08:52
2180-Jan-25 04:00 00:13 Jupiter 1.9733467134373 1.97334491728851 1.97334850970723 3.83918658846676 3.72570674044701 2517312.666994703 12.9910127718226 814.812494165711 19.0387863874876 -82.9813343281774 2700215.64525962 T 10 CATAB v2.0f-lin.ifort 2020-Nov-12 08:52:21 2020-Nov-12 08:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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