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216294 (2007 KM4)
Classification: Main-belt Asteroid          SPK-ID: 2216294
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747032132749345 5.0838e-08  
a 2.618700186857895 2.4066e-08 au
q 2.161204849610149 1.3563e-07 au
i 1.398258416424948 7.7156e-06 deg
node 318.3668487371981 0.00028428 deg
peri 328.20271083 0.00028559 deg
M 84.185121681924 2.4385e-05 deg
tp 2459034.540533962645
(2020-Jul-04.04053396)
0.00010501 TDB
period 1547.843670830335
4.24
2.1337e-05
5.842e-08
d
yr
n .2325816274500637 3.2062e-09 deg/d
Q 3.07619552410564 2.8271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-09-03  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:14  

Additional Information
 Earth MOID = 1.14465 au 
 Jupiter MOID = 2.08591 au 
 T_jup = 3.384 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456905.5 (2014-Sep-05.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1734328552958424 5.0773e-08  
q 2.167197083394714 1.3532e-07 au
tp 2457485.955018854031
(2016-Apr-07.45501885)
0.00010962 TDB
node 318.4349114939135 0.00028409 deg
peri 328.11690207742 0.00028542 deg
i 1.39838616347229 7.7083e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-09-03  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:14  

Additional Information
 Jupiter MOID = 2.08591 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.577886760450457E-15 -6.794537570942892E-15 2.090255733804244E-12 -6.571895315568571E-15 5.53542004806462E-13 -6.683642705102481E-16
q -6.794537570942892E-15 1.831095527039516E-14 -6.047754496772405E-12 4.283395000402737E-15 -1.623292788453845E-12 1.509250845971533E-15
tp 2.090255733804244E-12 -6.047754496772405E-12 1.201754314536143E-8 -2.744418435636866E-13 3.065199325244962E-9 -1.941872540024992E-13
node -6.571895315568571E-15 4.283395000402737E-15 -2.744418435636866E-13 8.070830491946283E-8 -8.068261014891918E-8 1.048559441890678E-9
peri 5.53542004806462E-13 -1.623292788453845E-12 3.065199325244962E-9 -8.068261014891918E-8 8.146387156490578E-8 -1.048282916787629E-9
i -6.683642705102481E-16 1.509250845971533E-15 -1.941872540024992E-13 1.048559441890678E-9 -1.048282916787629E-9 5.941835473149443E-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 16.85   n/a E2021B55  

216294 (2007 KM4)          Discovered 2007-May-24 by Hoenig, S. F., Teamo, N. at Tiki
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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