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296504 (2009 KM1)
Classification: Main-belt Asteroid          SPK-ID: 2296504
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859998694043162 6.5804e-08  
a 3.12572302522485 3.5806e-08 au
q 2.544338950738964 2.2305e-07 au
i 15.35916474782781 8.2704e-06 deg
node 231.7483284840006 1.7592e-05 deg
peri 46.21008891512385 2.8202e-05 deg
M 332.5040199731861 1.8404e-05 deg
tp 2459154.666803443134
(2020-Nov-01.16680344)
0.00010347 TDB
period 2018.478671624177
5.53
3.4684e-05
9.496e-08
d
yr
n .1783521446428386 3.0646e-09 deg/d
Q 3.707107099710737 4.2466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6286 days (17.21 yr)  
   first obs. used      2003-05-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:45:40  

Additional Information
 Earth MOID = 1.55481 au 
 Jupiter MOID = 1.47838 au 
 T_jup = 3.133 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457810.5 (2017-Feb-26.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848825883359782 6.5855e-08  
q 2.549343934695967 2.2326e-07 au
tp 2457134.954062246931
(2015-Apr-22.45406225)
0.00010626 TDB
node 231.7490370532721 1.7585e-05 deg
peri 46.11956108785099 2.8309e-05 deg
i 15.35803958365224 8.2699e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6286 days (17.21 yr)  
   first obs. used      2003-05-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:45:40  

Additional Information
 Jupiter MOID = 1.47838 au 
 T_jup = 3.133 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.336862519638704E-15 -1.461330755551939E-14 -1.530834367985335E-12 2.603195595965264E-14 -3.507852821700435E-13 -1.896342266062803E-14
q -1.461330755551939E-14 4.984504296431988E-14 4.111429465705655E-12 -8.829075131882156E-14 1.022964539223838E-12 6.871580136314713E-14
tp -1.530834367985335E-12 4.111429465705655E-12 1.129095815154903E-8 -2.53272968960711E-11 2.355324050843523E-9 -5.656685556498573E-12
node 2.603195595965264E-14 -8.829075131882156E-14 -2.53272968960711E-11 3.092218513147087E-10 -3.031052204528663E-10 1.439451906632594E-11
peri -3.507852821700435E-13 1.022964539223838E-12 2.355324050843523E-9 -3.031052204528663E-10 8.013815964902033E-10 -1.442177350467249E-11
i -1.896342266062803E-14 6.871580136314713E-14 -5.656685556498573E-12 1.439451906632594E-11 -1.442177350467249E-11 6.839111469536737E-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 15.8   n/a MPO471126  

296504 (2009 KM1)          Discovered 2009-May-18 by Lowe, A. at Mayhill
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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