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312277 (2008 AT111)
Classification: Main-belt Asteroid          SPK-ID: 2312277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2553254767966056 9.7846e-08  
a 2.582804960722058 2.1146e-08 au
q 1.923349052653061 2.6203e-07 au
i 4.022520913749975 7.1496e-06 deg
node 351.5781138312942 0.00012371 deg
peri 74.07944926564733 0.00012886 deg
M 299.7855538831673 2.1058e-05 deg
tp 2458854.091118814442
(2020-Jan-05.59111881)
8.8277e-05 TDB
period 1516.127917145757
4.15
1.862e-05
5.098e-08
d
yr
n .2374469831528011 2.9161e-09 deg/d
Q 3.242260868791056 2.6545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1998-08-26  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51406  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 19:04:35  

Additional Information
 Earth MOID = .941276 au 
 Jupiter MOID = 2.10882 au 
 T_jup = 3.374 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457235.5 (2015-Aug-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2528379686999451 9.728e-08  
q 1.931262914087075 2.6003e-07 au
tp 2457335.073259076815
(2015-Nov-08.57325908)
9.6397e-05 TDB
node 351.7345876935979 0.00012318 deg
peri 73.66557131117217 0.00012857 deg
i 4.030398700163669 7.1572e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1998-08-26  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51406  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 19:04:35  

Additional Information
 Jupiter MOID = 2.10882 au 
 T_jup = 3.374 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.463455732609957E-15 -2.526435746288873E-14 -1.246204775235878E-12 6.4412035769965E-14 -5.690667883819632E-13 -4.002225273967976E-14
q -2.526435746288873E-14 6.761806839777295E-14 2.729148305599221E-12 -1.554166167697261E-13 1.299428910507729E-12 1.078617257425401E-13
tp -1.246204775235878E-12 2.729148305599221E-12 9.292413276371898E-9 -2.751948521257929E-10 3.620745455997196E-9 -2.93784337386955E-12
node 6.4412035769965E-14 -1.554166167697261E-13 -2.751948521257929E-10 1.517396982924955E-8 -1.523672889451186E-8 3.274863759725249E-10
peri -5.690667883819632E-13 1.299428910507729E-12 3.620745455997196E-9 -1.523672889451186E-8 1.653144681324551E-8 -3.27566357403309E-10
i -4.002225273967976E-14 1.078617257425401E-13 -2.93784337386955E-12 3.274863759725249E-10 -3.27566357403309E-10 5.122519963085433E-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 17.5   n/a MPO372914  

312277 (2008 AT111)          Discovered 2008-Jan-15 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 AT111 = 1998 QE59 = 1998 SF176 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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