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(2003 AF23)
Classification: Aten [NEO, PHA]          SPK-ID: 3146499
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4259074181776724 7.3875e-07  
a .8744518080513813 1.5289e-09 au
q .5020162961634199 6.4587e-07 au
i 23.23232536476512 2.299e-05 deg
node 286.761575077294 3.0897e-06 deg
peri 43.94163129084822 3.6048e-06 deg
M 304.8720238437094 9.133e-05 deg
tp 2459442.237433942158
(2021-Aug-15.73743394)
7.5791e-05 TDB
period 298.6773207943713
0.82
7.8331e-07
2.145e-09
d
yr
n 1.205314146526201 3.1611e-09 deg/d
Q 1.246887319939343 2.1801e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.476153699684777E-14 3.577E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      473  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      6621 days (18.13 yr)  
   first obs. used      2003-01-08  
   last obs. used      2021-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35431  
   source      ORB  
   producer      Giorgini  
   solution date      2021-Jun-30 00:17:17  

Additional Information
 Earth MOID = .0329204 au 
 Jupiter MOID = 4.11634 au 
 T_jup = 6.632 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457474.5 (2016-Mar-27.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4259167384445535 7.3856e-07  
q .5021265549147398 6.4593e-07 au
tp 2457350.865566260994
(2015-Nov-24.36556626)
7.5105e-05 TDB
node 286.7893062285081 3.1155e-06 deg
peri 43.96275626133949 3.5874e-06 deg
i 23.22451028999331 2.2996e-05 deg

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -5.476153699684777E-14 3.577E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      473  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      6621 days (18.13 yr)  
   first obs. used      2003-01-08  
   last obs. used      2021-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35431  
   source      ORB  
   producer      Giorgini  
   solution date      2021-Jun-30 00:17:17  

Additional Information
 Jupiter MOID = 4.11634 au 
 T_jup = 6.632 
Orbit Covariance (7×7)
  e q tp node peri i A2
e 5.454699356345608E-13 -4.770605977282936E-13 5.537413523060974E-11 -1.274771579268308E-12 7.724799543718289E-13 1.348017651065915E-11 1.399314027820516E-21
q -4.770605977282936E-13 4.17230859230391E-13 -4.843082683993912E-11 1.114999767637902E-12 -6.761474526055291E-13 -1.178808685157737E-11 -1.222846304271498E-21
tp 5.537413523060974E-11 -4.843082683993912E-11 5.640714294805148E-9 -1.260028076228023E-10 8.59415677499423E-11 1.354217968657254E-9 1.329849100343471E-19
node -1.274771579268308E-12 1.114999767637902E-12 -1.260028076228023E-10 9.706288657763188E-12 -5.724531721784097E-12 -3.377858735598334E-11 -3.275109283015967E-21
peri 7.724799543718289E-13 -6.761474526055291E-13 8.59415677499423E-11 -5.724531721784097E-12 1.286963019126317E-11 6.051230648082879E-12 1.271493180719265E-21
i 1.348017651065915E-11 -1.178808685157737E-11 1.354217968657254E-9 -3.377858735598334E-11 6.051230648082879E-12 5.28801734572928E-10 3.712135810054981E-20
A2 1.399314027820516E-21 -1.222846304271498E-21 1.329849100343471E-19 -3.275109283015967E-21 1.271493180719265E-21 3.712135810054981E-20 1.279441206711762E-29

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.02   n/a MPO623356  

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