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344412 (2002 AP171)
Classification: Main-belt Asteroid          SPK-ID: 2344412
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12368681235374 9.341e-08  
a 2.532612233035569 2.6411e-08 au
q 2.219361499003312 2.4286e-07 au
i 3.451972105336707 1.0263e-05 deg
node 91.74110224068595 0.00011587 deg
peri 109.3401172667807 0.000129 deg
M 37.25903341101368 6.2802e-05 deg
tp 2458448.136633270014
(2018-Nov-25.63663327)
0.0002561 TDB
period 1472.148013549415
4.03
2.3028e-05
6.305e-08
d
yr
n .2445406281750324 3.8252e-09 deg/d
Q 2.845862967067826 2.9677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      5874 days (16.08 yr)  
   first obs. used      2001-12-23  
   last obs. used      2018-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54926  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:18:08  

Additional Information
 Earth MOID = 1.21949 au 
 Jupiter MOID = 2.11559 au 
 T_jup = 3.437 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456671.5 (2014-Jan-14.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1234465055459577 9.3648e-08  
q 2.220370772186179 2.4406e-07 au
tp 2456974.429704611534
(2014-Nov-12.92970461)
0.00024889 TDB
node 91.76374375991595 0.00011586 deg
peri 108.7638012114776 0.00012889 deg
i 3.45218407479134 1.0262e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      5874 days (16.08 yr)  
   first obs. used      2001-12-23  
   last obs. used      2018-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54926  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:18:08  

Additional Information
 Jupiter MOID = 2.11559 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.769966120790093E-15 -2.275618283790588E-14 -1.290929085584403E-11 9.77136640850474E-14 -2.516733550905194E-12 9.278770156751591E-15
q -2.275618283790588E-14 5.956689259822601E-14 3.418475881090033E-11 -2.543792246960507E-13 6.666363406524414E-12 -2.407520550597618E-14
tp -1.290929085584403E-11 3.418475881090033E-11 6.194789301948708E-8 -3.169480890520151E-10 1.403332932850314E-8 -1.066369752270844E-11
node 9.77136640850474E-14 -2.543792246960507E-13 -3.169480890520151E-10 1.34243126457765E-8 -1.346753117319879E-8 3.506158266123187E-10
peri -2.516733550905194E-12 6.666363406524414E-12 1.403332932850314E-8 -1.346753117319879E-8 1.661247734863641E-8 -3.51858907412151E-10
i 9.278770156751591E-15 -2.407520550597618E-14 -1.066369752270844E-11 3.506158266123187E-10 -3.51858907412151E-10 1.053151417099247E-10

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 16.8   n/a MPO437459  

344412 (2002 AP171)          Discovered 2002-Jan-14 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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