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268877 (2007 AW23)
Classification: Main-belt Asteroid          SPK-ID: 2268877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1412258152386538 4.1646e-08  
a 2.448733361870953 2.0647e-08 au
q 2.102908996538638 1.0028e-07 au
i 3.213507656218119 6.971e-06 deg
node 166.9741028303801 7.6995e-05 deg
peri 302.0480490252084 8.5093e-05 deg
M 184.6306532131937 3.8446e-05 deg
tp 2459682.307630993831
(2022-Apr-12.80763099)
0.00015603 TDB
period 1399.62172212553
3.83
1.7702e-05
4.847e-08
d
yr
n .2572123555308126 3.2532e-09 deg/d
Q 2.794557727203268 2.3563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      5471 days (14.98 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:10:19  

Additional Information
 Earth MOID = 1.12169 au 
 Jupiter MOID = 2.31781 au 
 T_jup = 3.481 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457480.5 (2016-Apr-02.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422103202043767 4.1359e-08  
q 2.098410030280641 9.9906e-08 au
tp 2456883.354192083088
(2014-Aug-13.85419208)
0.00012908 TDB
node 167.0940339192936 7.7075e-05 deg
peri 301.4434473918756 8.5071e-05 deg
i 3.212660168758785 6.9716e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      5471 days (14.98 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:10:19  

Additional Information
 Jupiter MOID = 2.31781 au 
 T_jup = 3.481 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.710534335554114E-15 -4.067363645296024E-15 1.66560484128429E-12 -4.877863094662451E-15 4.115169359315127E-13 -3.860558970703867E-16
q -4.067363645296024E-15 9.981196653984765E-15 -2.539430039259379E-12 1.176266437606422E-14 -5.660724447667001E-13 1.303576360501189E-15
tp 1.66560484128429E-12 -2.539430039259379E-12 1.666131143319597E-8 -2.259042369970595E-11 4.655690683976656E-9 -2.654565226482266E-13
node -4.877863094662451E-15 1.176266437606422E-14 -2.259042369970595E-11 5.940486477308433E-9 -5.936290528410824E-9 1.08473149854813E-10
peri 4.115169359315127E-13 -5.660724447667001E-13 4.655690683976656E-9 -5.936290528410824E-9 7.23705077569239E-9 -1.083572896106472E-10
i -3.860558970703867E-16 1.303576360501189E-15 -2.654565226482266E-13 1.08473149854813E-10 -1.083572896106472E-10 4.860364838299401E-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 17.2   n/a MPO433744  

268877 (2007 AW23)          Discovered 2007-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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