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268997 (2007 EJ105)
Classification: Main-belt Asteroid          SPK-ID: 2268997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446594714802493 4.6905e-08  
a 2.64844047137563 2.3036e-08 au
q 2.265318472539529 1.3077e-07 au
i 4.278636161707528 9.6379e-06 deg
node 6.792081501896821 6.8646e-05 deg
peri 285.8288628279018 7.7107e-05 deg
M 283.2930727498779 3.5535e-05 deg
tp 2459335.940761880608
(2021-May-01.44076188)
0.00015641 TDB
period 1574.286425048092
4.31
2.054e-05
5.624e-08
d
yr
n .2286750328733874 2.9835e-09 deg/d
Q 3.031562470211731 2.6369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      5722 days (15.67 yr)  
   first obs. used      2004-09-15  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:09:21  

Additional Information
 Earth MOID = 1.25392 au 
 Jupiter MOID = 2.16442 au 
 T_jup = 3.373 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457508.5 (2016-Apr-30.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438482937323207 4.6871e-08  
q 2.26813524674838 1.3056e-07 au
tp 2457759.934534006907
(2017-Jan-06.43453401)
0.00015357 TDB
node 6.818319019089059 6.8631e-05 deg
peri 285.5620435957658 7.7179e-05 deg
i 4.278636722599167 9.6374e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      5722 days (15.67 yr)  
   first obs. used      2004-09-15  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:09:21  

Additional Information
 Jupiter MOID = 2.16442 au 
 T_jup = 3.373 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.196850555073037E-15 -6.053969178318669E-15 6.794635592449485E-13 3.162122216195034E-15 2.129328197942893E-13 2.554452905067397E-15
q -6.053969178318669E-15 1.70467912676151E-14 -1.412449978866982E-12 -1.342257262993547E-14 -4.974601870813961E-13 -7.230747692029636E-15
tp 6.794635592449485E-13 -1.412449978866982E-12 2.358367490981048E-8 -9.462058124484702E-11 5.433658497115451E-9 3.833078526714945E-12
node 3.162122216195034E-15 -1.342257262993547E-14 -9.462058124484702E-11 4.710177381252921E-9 -4.717417247945307E-9 1.157469685548832E-10
peri 2.129328197942893E-13 -4.974601870813961E-13 5.433658497115451E-9 -4.717417247945307E-9 5.95656014194905E-9 -1.144829949627131E-10
i 2.554452905067397E-15 -7.230747692029636E-15 3.833078526714945E-12 1.157469685548832E-10 -1.144829949627131E-10 9.287951985848016E-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 16.92   n/a E2021B55  

268997 (2007 EJ105)          Discovered 2007-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2007 EJ105 = 2004 RA331 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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