#
#
# Moon
#
# 


chronology_system={
  body='Moon'
  name='Moon, Neukum (1983)'
  cf='Moon, Neukum (1983)'
  pf='Moon, Neukum (1983)'
}

production={
   name='Moon, Neukum (1983)'
   coefficients=*[-2.5339,-3.6269,0.43662,0.79347,0.086468,-0.26485,-0.066382,0.037923,0.010596,-0.0022496,-0.00051797,0.0000397]
#                a0 for 1 Ga should be -3.0768 (in any case, a0 is superfluous to specification of PF and ignored by Craterstats)
   range=[.01,300.]
}


chronology={
    name='Moon, Neukum (1983)'
    coefficients=[5.44E-14,6.93E0,0,8.38E-4]
    reference='Neukum, G., 1983. Meteoritenbombardement und Datierung planetarer Oberflächen. Habilitation Dissertation. Ludwig Maximilianis Univ., Munich.'    
}




chronology_system={
  body='Moon'
  name='Moon, Neukum et al. (2001)'
  cf='Moon, Neukum et al. (2001)'
  pf='Moon, Neukum et al. (2001)'
}

production={
   name='Moon, Neukum et al. (2001)'
   coefficients=*[-3.0768e00,-3.557528e00,0.781027e00,1.021521e00,-0.156012e00,-0.444058e00,0.019977e00,0.086850e00,-0.005874e00,-0.006809e00,8.25e-04,5.54e-05]
#                published value is a0=-3.0876, but this appears to be a typo (either way, a0 is superfluous to specification of PF and ignored by Craterstats)
   range=[.01,300.]
#                range taken from Ivanov, Neukum, Wagner (2001), Size-Frequency Distributions of Planetary Impact Craters and Asteroids
   reference='Neukum, G., B. Ivanov, and W. Hartmann (2001), Cratering records in the inner solar system in relation to the lunar reference system, Space Sci. Rev. 96, 55 - 87.; Ivanov, B.A., Neukum, G., Wagner, R. (2001). Size-Frequency Distributions of Planetary Impact Craters and Asteroids. In: Marov, M.Y., Rickman, H. (eds) Collisional Processes in the Solar System. Astrophysics and Space Science Library, vol 261. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0712-2_1'
}

chronology={
    name='Moon, Neukum et al. (2001)'
    coefficients=[5.44E-14,6.93E0,0,8.38E-4]
    reference='Neukum, G., Ivanov, B. A., and Hartmann, W. K. (2001) Cratering records in the inner solar system in relation to the lunar reference system. Space Science Reviews, v. 96, p. 55-86.'    
}



chronology_system={
  body='Moon'
  name='Moon, Hartmann 2010 iteration'
  cf='Moon, Hartmann 2010 iteration'
  pf='Moon, Hartmann 2010 iteration'
}

production={
   name='Moon, Hartmann 2010 iteration'
   type='tabular incremental root-2'
   H=*[3.66E+04,9.87E+03,2.63E+03,6.99E+02,1.86E+02,4.98E+01,1.33E+01,3.49E+00,9.40E-01,2.50E-01,6.65E-02,1.76E-02,4.69E-03,1.25E-03,4.73E-04,2.53E-04,1.36E-04,7.26E-05,3.90E-05,2.08E-05,1.12E-05,5.98E-06,3.21E-06,1.72E-06,9.22E-07,3.80E-07,1.50E-07]
   index_1km=13
   yrange=[-7.6,3]
   reference='Hartmann W.K., private communication'
}

chronology={
    name='Moon, Hartmann 2010 iteration'
    coefficients=[2.57E-14,6.93,0,3.97E-04]
   reference='Hartmann W.K., private communication; Michael G., Planetary surface dating from crater size–frequency distribution measurements- Multiple resurfacing episodes and differential isochron fitting (2013)'
}


chronology_system={
  body='Moon'
  name='Moon, Yue et al. (2022)'
  cf='Moon, Yue et al. (2022)'
  pf='Moon, Neukum et al. (2001)'
}

chronology={
    name='Moon, Yue et al. (2022)'
    coefficients=[1.089E-13,6.757,0,7.660E-4]
    reference='Zongyu Yue, Kaichang Di, Wenhui Wan, Zhaoqin Liu, Sheng Gou, Bin Liu, Man Peng, Yexin Wang, Mengna Jia, Jianzhong Liu, and Ziyuan Ouyang. Updated lunar cratering chronology model with the radiometric age of Chang’e-5 samples. Nature Astronomy, 2022.'
}


#
#
# Equilibrium functions
#
#

equilibrium={
   name='Lunar equilibrium (Trask, 1966)'
   type='polynomial'
   coefficients=[-1.1,-2.]
   range=[.001,1000.]
   reference='Trask, N. J. (1966) Size and spatial distribution of craters estimated from Ranger photographs. Jet Propul. Lab. Tech. Rep. 32-800, Pasadena, Cal., 252 S.'
}

equilibrium={
   name='Hartmann (1984)'
   type='polynomial'
   coefficients=[-1.14,-1.83] 
#                 a0=-1.33-alog10(2.^(-.25*k)-2.^(.25*k)) where k=-1.83 for cumulative form. Correction provided by Kjartan Kinch 2017-03
   range=[.001,1000.]
   reference='Hartmann W. K. (1984) Does Crater Saturation Equilibrium Occur in the Solar System? Icarus 60, 56-74'
}



#
#
# Epoch systems
#
# 
            
epochs={
  name='Moon, Wilhelms (1987)'
  epoch=['Copernican','Eratosthenian','Late Imbrian','Early Imbrian','Nectarian','Pre-Nectarian']
  time=[0.,1.1,3.2,3.8,3.85,3.92]
  formatting=[60,0b,1b,0,2b,1r,2]
  reference='Wilhelms (1987). Geologic History of the Moon. U.S. Geological Survey Professional Paper 1348. Ages (incl. significant figures) from text of Chapter 14.'
}

epochs={
  name='Moon, Guo et al (2024)'
  epoch=['Copernican','Eratosthenian','Late Imbrian','Early Imbrian','Nectarian','Aitkenian','Magma-oceanian']
  time=[0.,.8,3.16,3.8,3.85,3.92,4.31]
  formatting=[60,0b,1b,0,2b,1r,2,2]
  reference='Guo, Liu, Head et al, 2024 - A lunar time scale from the perspective of the Moon’s dynamic evolution.'
}

epochs={
  name='Mars, Michael (2013)'
  epoch=*['Late Amazonian','Middle Amazonian','Early Amazonian','Late Hesperian','Early Hesperian','Late Noachian','Middle Noachian','Early Noachian']
  formatting=[90,0,1,2b,0,2b,0,1,2]
  ref_diameter=[1,1,1,5,5,16,16]
  density=[160,600,2100,125,200,100,200]
  reference='Michael (2013), Planetary surface dating from crater size–frequency distribution measurements: Multiple resurfacing episodes and differential isochron fitting. Note that ages are corrected from those in Werner & Tanaka (2011).'
}



#
#
# Mars
#
# 


chronology_system={
  body='Mars'
  name='Mars, Neukum-Ivanov (2001)'
  cf='Mars, Hartmann & Neukum (2001)'
  pf='Mars, Ivanov (2001)'
}

chronology_system={
  body='Mars'
  name='Mars, Ivanov (2001)'
  cf='Mars, Ivanov (2001)'
  pf='Mars, Ivanov (2001)'
}

production={
   name='Mars, Ivanov (2001)'
   coefficients=*[-3.383677e00,-3.197453e00,1.256814e00,7.915374e-01,-4.860814e-01,-3.630098e-01,1.015683e-01,6.755923e-02,-1.180639e-02,-4.753462e-03,6.232845e-04,5.805492e-05]
   range=[.015,362.]
}

chronology={
    name='Mars, Hartmann & Neukum (2001)'
    coefficients=[3.22E-14,6.93E00,0,4.875E-04]    
    reference='graphically: 2001 Hartmann & Neukum - Cratering Chronology and the Evolution of Mars; in equation form: 2001 Neukum Ivanov Hartmann - Cratering Records in the Inner Solar System in Relation to the Lunar Reference System"
}

chronology={
    name='Mars, Ivanov (2001)'
    coefficients=[2.68e-14,6.93e00,0,4.13e-4]    
    reference='Ivanov, B. A. (2001) MARS/MOON CRATERING RATE RATIO ESTIMATES' 
}

production={
   name='Mars, Neukum (1983)'
   coefficients=*[-3.7887,-2.9076,1.187,3.8419e-01,-3.9553e-01,-1.6517e-01,5.8655e-02,2.6348e-02,-3.6585e-03,-1.6354e-03,7.3875e-05,2.8421e-05]
   range=[.01,300.]
}





chronology_system={
  body='Mars'
  name='Mars, Hartmann 2004 iteration'
  cf='Mars, Hartmann (2005) [Michael (2013)]'
  pf='Mars, Hartmann (2005)'
}

production={
   name='Mars, Hartmann (2005)'
   type='tabular incremental root-2'
   H=*[4.04E+03,2.33E+03,1.14E+03,4.58E+02,1.91E+02,6.66E+01,2.40E+01,9.44E+00,3.30E+00,1.22E+00,4.37E-01,1.47E-01,4.70E-02,1.38E-02,4.02E-03,1.15E-03,3.08E-04,1.28E-04,6.85E-05,3.67E-05,1.98E-05,1.06E-05,5.68E-06,3.04E-06,1.62E-06,8.71E-07,4.67E-07,2.40E-07,1.12E-07,5.21E-08,2.43E-08,1.13E-08,5.28E-09,2.47E-09,1.15E-09,5.37E-10]
   index_1km=16
   yrange=[-8,4]
   reference='Hartmann W.K., Martian cratering 8: Isochron refinement and the chronology of Mars. Icarus 174 (2005) [nb: corrected typos]'
}

chronology={
    name='Mars, Hartmann (2005) [Michael (2013)]'
    coefficients=[3.79E-14,6.93,0,5.84E-04] 
   reference='Hartmann W.K., Martian cratering 8: Isochron refinement and the chronology of Mars. Icarus 174 (2005); Michael G., Planetary surface dating from crater size–frequency distribution measurements- Multiple resurfacing episodes and differential isochron fitting (2013)'
}



chronology_system={
  body='Mars'
  name='Mars, Hartmann & Daubar (2016)'
  cf='Mars, Hartmann (2005) [Michael (2013)]'
  pf='Mars, Hartmann & Daubar (2016)'
}

production={
   name='Mars, Hartmann & Daubar (2016)'
   type='tabular incremental root-2'
   H=*[1.10e+05,7.50e+04,4.50e+04,2.40e+04,1.10e+04,4.20e+03,1.60e+03,6.00e+02,1.90e+02,6.70e+01,2.40E+01,9.44E+00,3.30E+00,1.22E+00,4.37E-01,1.47E-01,4.70E-02,1.38E-02,4.02E-03,1.15E-03,3.08E-04,1.28E-04,6.85E-05,3.67E-05,1.98E-05,1.06E-05,5.68E-06,3.04E-06,1.62E-06,8.71E-07,4.67E-07,2.40E-07,1.12E-07,5.21E-08,2.43E-08,1.13E-08,5.28E-09,2.47E-09,1.15E-09,5.37E-10]
   index_1km=20
   yrange=[-8,5]
   reference='Hartmann & Daubar. Martian cratering 11 - Utilizing decameter scale crater populations to study Martian history. Meteoritics & Planetary Science 1–18 (2016)'
}



#
#
# Mercury
#
# 



chronology_system={
  body='Mercury'
  name='Mercury, Strom & Neukum (1988)'
  cf='Mercury, Strom & Neukum (1988)'
  pf='Mercury, Strom & Neukum (1988)'
}

production={
   name='Mercury, Strom & Neukum (1988)'
   coefficients=*[-2.600300e00,-3.6712e00,2.946e-01,7.63e-01,1.62e-01,-2.379e-01,-8.1361e-02,3.2493e-02,1.1737e-02,-1.9272e-03,-5.4447e-04,3.97e-05]
   range=[.01,100.]
   reference='Strom, R.G., Neukum, G., 1988. The cratering record on Mercury and the origin of impacting objects. In: Vilas, F., Chapman, C.R., Matthews, M.S. (Eds.), Mercury. University of Arizona Press, Tucson, Ariz., pp. 336-373.'
}

chronology={
    name='Mercury, Strom & Neukum (1988)'
    coefficients=[1.186E-13,6.93E0,0,1.818E-3]
    reference='Strom, R.G., Neukum, G., 1988. The cratering record on Mercury and the origin of impacting objects. In: Vilas, F., Chapman, C.R., Matthews, M.S. (Eds.), Mercury. University of Arizona Press, Tucson, Ariz., pp. 336–373.'    
}



chronology_system={
  body='Mercury'
  name='Mercury, Neukum et al. (2001)'
  cf='Mercury, Neukum et al. (2001)'
  pf='Mercury, Neukum et al. (2001)'
}

production={
   name='Mercury, Neukum et al. (2001)'
   coefficients=*[-3.016675e00,-3.627417e00,6.038601e-01,1.026714e00,-3.767761e-03,-4.204364e-01,-3.2235e-02,8.044575e-02,3.170165e-03,-6.733922e-03,1.334403e-04,1.428627e-04]
   range=[.01,100.]
   reference='G. Neukum, J. Oberst, H. Hoffmann, R. Wagner, B. A. Ivanov, Geologic evolution and cratering history of Mercury, Planetary and Space Science, Volume 49, Issues 14-15, December 2001, Pages 1507-1521.'
}

chronology={
    name='Mercury, Neukum et al. (2001)'
    coefficients=[6.247e-14,6.93E0,0,9.620e-4]
    reference='G. Neukum, J. Oberst, H. Hoffmann, R. Wagner, B. A. Ivanov, Geologic evolution and cratering history of Mercury, Planetary and Space Science, Volume 49, Issues 14-15, December 2001, Pages 1507-1521.'    
}





chronology_system={
  body='Mercury'
  name='Mercury, Le Feuvre and Wieczorek 2011 non-porous'
  cf='Mercury, Le Feuvre and Wieczorek (2011) non-porous'
  pf='Mercury, Le Feuvre and Wieczorek (2011) non-porous'
}

production={
   name='Mercury, Le Feuvre and Wieczorek (2011) non-porous'
   coefficients=*[-0.93900e00,-3.99400e00,-1.11600e00,1.26900e00,1.27200e00,-8.27600e-01,-3.71800e-01,2.46300e-01,2.09100e-02,-2.75600e-02,3.65900e-03,0.00000e00]
   range=[0.1,1000.]
   reference='Le Feuvre and Wieczorek 2011 Icarus'
}

chronology={
    name='Mercury, Le Feuvre and Wieczorek (2011) non-porous'
    coefficients=[2.74e-24,1.444E1,0,1.150e-1]
    reference='Le Feuvre and Wieczorek 2011 Icarus'
}




chronology_system={
  body='Mercury'
  name='Mercury, Le Feuvre and Wieczorek 2011 porous'
  cf='Mercury, Le Feuvre and Wieczorek (2011) porous'
  pf='Mercury, Le Feuvre and Wieczorek (2011) porous'
}

production={
   name='Mercury, Le Feuvre and Wieczorek (2011) porous'
   coefficients=*[-2.59000000e00,-3.67300000e00,9.00200000e-01,9.60900000e-01,-5.23900000e-01,-3.62200000e-01,1.50800000e-01,5.22400000e-02,-1.84300000e-02,-2.51000000e-03,8.05300000e-04]
   range=[0.1,1000.]
   reference='Le Feuvre and Wieczorek 2011 Icarus'
}

chronology={
    name='Mercury, Le Feuvre and Wieczorek (2011) porous'
    coefficients=[6.11e-26,1.444E1,0,2.57e-3]
    reference='Le Feuvre and Wieczorek 2011 Icarus'
}








#
#
# Small bodies
#
#



###Vesta###

chronology_system={
  body='Vesta'
  name='Vesta, Rev4, Schmedemann et al (2014)'
  cf='Vesta, Rev4, Schmedemann et al (2014)'
  pf='Vesta, Rev4, Schmedemann et al (2014)'
  ref='N. Schmedemann, T. Kneissl, B.A. Ivanov, G.G. Michael, R.J. Wagner, G. Neukum, O. Ruesch, H. Hiesinger, K. Krohn, T. Roatsch, F. Preusker, H. Sierks, R. Jaumann, V. Reddy, A. Nathues, S. Walter, A. Neesemann, C.A. Raymond, C.T. Russell, The Cratering Record, Chronology and Surface Ages of (4) Vesta in Comparison to Smaller Asteroids and the Ages of HED Meteorites, Planetary and Space Science, 2014,  http://dx.doi.org/10.1016/j.pss.2014.04.004'
}

production={
   name='Vesta, Rev4, Schmedemann et al (2014)'
   coefficients=*[-3.365,-2.9267,0.6192,0.59636,0.11879,-0.30577,-0.20515,0.068576,0.058513,-0.010293,-0.0053325,0.0009643]
   range=[0.03,500]
}

chronology={
    name='Vesta, Rev4, Schmedemann et al (2014)'
    coefficients=[1.28501204957199e-12,6.93,0,0.0197948547342156]    
}





chronology_system={
  body='Vesta'
  name='Vesta, Rev3, Schmedemann et al (2014)'
  cf='Vesta, Rev3, Schmedemann et al (2014)'
  pf='Vesta, Rev3, Schmedemann et al (2014)'
  ref='N. Schmedemann, T. Kneissl, B.A. Ivanov, G.G. Michael, R.J. Wagner, G. Neukum, O. Ruesch, H. Hiesinger, K. Krohn, T. Roatsch, F. Preusker, H. Sierks, R. Jaumann, V. Reddy, A. Nathues, S. Walter, A. Neesemann, C.A. Raymond, C.T. Russell, The Cratering Record, Chronology and Surface Ages of (4) Vesta in Comparison to Smaller Asteroids and the Ages of HED Meteorites, Planetary and Space Science, 2014,  http://dx.doi.org/10.1016/j.pss.2014.04.004'
}

production={
   name='Vesta, Rev3, Schmedemann et al (2014)'
   coefficients=*[-3.1643,-3.0382,0.5445,0.67305,0.11447,-0.34186,-0.15077,0.079115,0.035557,-0.0099727,-0.002574,0.00058434]
   range=[0.00380141,500]
}

chronology={
    name='Vesta, Rev3, Schmedemann et al (2014)'
    coefficients=[1.32232049255323e-12,6.93,0,0.0203695693521986]
}





chronology_system={
  body='Vesta'
  name="Vesta, Marchi & O'Brien (2014)"
  cf="Vesta, O'Brien et al. (2014)""
  pf='Vesta, Marchi et al (2013) [inferred, NS]'
}

production={
   name='Vesta, Marchi et al (2013) [inferred, NS]'
   coefficients=*[-1.723e+000,-2.256e+000,5.189e-001,2.271e-001,-2.462e-001,-1.768e-001,5.113e-002,4.482e-002,-4.253e-003,-4.663e-003,1.013e-004,1.681e-004]
   range=[0.001,600]
   reference="Marchi et al, Small crater populations on Vesta, P&SS 103, 2014"
}


chronology={
    name="Vesta, O'Brien et al. (2014)"
    n1_code="
        t_o = 4.56
        t_lhb = 4.1
        lambda_lhb = 6.93
        f_lhb = 2
        tau_pd = 0.025
        c_cd = (t_lhb+0.001)**(0.0834)
        f_cd = c_cd*(0.001)**(-0.0834)
        c_lhb= (f_lhb*f_cd-f_cd)/exp(lambda_lhb*t_lhb)
        M_o = 836.
        c_pd = M_o-f_lhb*f_cd
        C1 = c_cd/0.9166*(t_lhb+0.001)**0.9166
        n_mlt = (c_lhb/lambda_lhb*(exp(lambda_lhb*t)-1) - c_cd/0.9166*(t_lhb-t+0.001)**0.9166 + C1)
        C2 = (c_lhb/lambda_lhb) * (exp(lambda_lhb*t_lhb)-1) - c_cd/0.9166*(0.001)**0.9166 + C1
        C3 = c_pd*tau_pd*exp((t_lhb-t_o)/tau_pd)
        n_mgt = (C2 + f_lhb*f_cd*(t-t_lhb) + c_pd*tau_pd*exp((t-t_o)/tau_pd) - C3)
        n1=n_mlt if t<t_lhb else n_mgt
        "
    #substitute last line: "n1=gm_conditional(t lt t_lhb,n_mlt,n_mgt)", and ^ for ** for IDL CraterstatsII
    reference="O'Brien et al., Constraining the cratering chronology of Vesta, P&SS 103, 2014"
}



###Ceres###

chronology_system={
  body='Ceres'
  name='Ceres, Hiesinger et al. (2016)'
  cf='Ceres, Hiesinger et al. (2016)'
  pf='Ceres, Hiesinger et al. (2016)'
  ref='Hiesinger et al., Cratering on Ceres: Implications for its crust and evolution, Science, 2016'
}


production={
   name='Ceres, Hiesinger et al. (2016)'
   coefficients=*[-2.8502,-3.2567,0.48621,0.60437,0.07478,-0.18704,-0.072493,0.02096,0.013396,-0.00072764,-0.00080732,1.5624e-05]
   range=[0.0066,301]
}

chronology={
    name='Ceres, Hiesinger et al. (2016)'
    coefficients=[3.79e-12,6.93,0,0.0584]
}




###Ida###

chronology_system={
  body='Ida'
  name='Ida, Schmedemann et al (2014)'
  cf='Ida, Schmedemann et al (2014)'
  pf='Ida, Schmedemann et al (2014)'
  ref='N. Schmedemann, T. Kneissl, B.A. Ivanov, G.G. Michael, R.J. Wagner, G. Neukum, O. Ruesch, H. Hiesinger, K. Krohn, T. Roatsch, F. Preusker, H. Sierks, R. Jaumann, V. Reddy, A. Nathues, S. Walter, A. Neesemann, C.A. Raymond, C.T. Russell, The Cratering Record, Chronology and Surface Ages of (4) Vesta in Comparison to Smaller Asteroids and the Ages of HED Meteorites, Planetary and Space Science, 2014,  http://dx.doi.org/10.1016/j.pss.2014.04.004'
}

production={
   name='Ida, Schmedemann et al (2014)'
   coefficients=*[-3.224142138786374,-2.734469281506526,0.671929065421138,0.324530500059052,-0.117050908572989,-0.061444221371560,0.025122353823233,-0.016168430276488,-0.010553901203146,0.006314954709733,0.001418988794371,-0.000624930348572]
   range=[.01,500.]
}

chronology={
    name='Ida, Schmedemann et al (2014)'
    coefficients=[1.58098379906017e-12,6.93e00,0,0.0243541254340518]    
}



###Gaspra###

chronology_system={
  body='Gaspra'
  name='Gaspra, Schmedemann et al (2014)'
  cf='Gaspra, Schmedemann et al (2014)'
  pf='Gaspra, Schmedemann et al (2014)'
  ref='N. Schmedemann, T. Kneissl, B.A. Ivanov, G.G. Michael, R.J. Wagner, G. Neukum, O. Ruesch, H. Hiesinger, K. Krohn, T. Roatsch, F. Preusker, H. Sierks, R. Jaumann, V. Reddy, A. Nathues, S. Walter, A. Neesemann, C.A. Raymond, C.T. Russell, The Cratering Record, Chronology and Surface Ages of (4) Vesta in Comparison to Smaller Asteroids and the Ages of HED Meteorites, Planetary and Space Science, 2014,  http://dx.doi.org/10.1016/j.pss.2014.04.004'
}

production={
   name='Gaspra, Schmedemann et al (2014)'
   coefficients=*[-2.994946069972350,-2.837652592429328,0.588639686417394,0.362687108451849,-0.090567764875174,-0.081316576656523,0.033630503955855,-0.005110350246025,-0.015222706637551,0.004495261079555,0.002050010873481,-0.000613330653994]
   range=[.01,500.]
}

chronology={
    name='Gaspra, Schmedemann et al (2014)'
    coefficients=[2.63540786651188e-12,6.93e00,0,0.0405969079436940]    
}




###Lutetia###

chronology_system={
  body='Lutetia'
  name='Lutetia, Schmedemann et al (2014)'
  cf='Lutetia, Schmedemann et al (2014)'
  pf='Lutetia, Schmedemann et al (2014)'
  ref='N. Schmedemann, T. Kneissl, B.A. Ivanov, G.G. Michael, R.J. Wagner, G. Neukum, O. Ruesch, H. Hiesinger, K. Krohn, T. Roatsch, F. Preusker, H. Sierks, R. Jaumann, V. Reddy, A. Nathues, S. Walter, A. Neesemann, C.A. Raymond, C.T. Russell, The Cratering Record, Chronology and Surface Ages of (4) Vesta in Comparison to Smaller Asteroids and the Ages of HED Meteorites, Planetary and Space Science, 2014,  http://dx.doi.org/10.1016/j.pss.2014.04.004'
}

production={
   name='Lutetia, Schmedemann et al (2014)'
   coefficients=*[-3.196962504355302,-2.750391206930112,0.655546915146280,0.320959334276113,-0.101901273684199,-0.051678170720090,0.016546774685667,-0.020969106448107,-0.008409482560258,0.007003716267793,0.001211905612587,-0.000637909708634]
   range=[0.01,500]
}

chronology={
    name='Lutetia, Schmedemann et al (2014)'
    coefficients=[2.04789006742868e-12,6.93,0,0.0315465418475227]    
}




###Phobos###

chronology_system={
  body='Phobos'
  name='Phobos, Case A - SOM, Schmedemann et al (2014)'
  cf='Phobos, Case A - SOM, Schmedemann et al (2014)'
  pf='Phobos, Case A - SOM, Schmedemann et al (2014)'
  ref='N. Schmedemann, G. Michael, B.A. Ivanov, J.B. Murray, G. Neukum, The age of Phobos and its largest crater, Stickney, Planetary and Space Science, April 2014, http://dx.doi.org/10.1016/j.pss.2014.04.009'
}

production={
   name='Phobos, Case A - SOM, Schmedemann et al (2014)'
   coefficients=*[-2.5489,-2.9794,0.42605,0.32288,-0.030823,-0.022295,0.019473,-0.022278,-0.0085611,0.0053854,0.00087331,-0.0003887]
   range=[0.01,10]   
}

chronology={
   name='Phobos, Case A - SOM, Schmedemann et al (2014)'
   coefficients=[5.24956219344925e-14,6.93e00,0,0.000808981039512889]    
   ref='N. Schmedemann, G. Michael, B.A. Ivanov, J.B. Murray, G. Neukum, The age of Phobos and its largest crater, Stickney, Planetary and Space Science, April 2014, http://dx.doi.org/10.1016/j.pss.2014.04.009'
}





chronology_system={
  body='Phobos'
  name='Phobos, Case B - MBA, Schmedemann et al (2014)'
  cf='Phobos, Case B - MBA, Schmedemann et al (2014)'
  pf='Phobos, Case B - MBA, Schmedemann et al (2014)'
  ref='N. Schmedemann, G. Michael, B.A. Ivanov, J.B. Murray, G. Neukum, The age of Phobos and its largest crater, Stickney, Planetary and Space Science, April 2014, http://dx.doi.org/10.1016/j.pss.2014.04.009'
}

production={
   name='Phobos, Case B - MBA, Schmedemann et al (2014)'
   coefficients=*[-2.8783,-2.8687,0.53853,0.30803,-0.048714,-0.018894,0.00371,-0.025344,-0.0033966,0.005711,0.0004281,-0.00036638]
   range=[0.01,10]  
}

chronology={
   name='Phobos, Case B - MBA, Schmedemann et al (2014)'
   coefficients=[4.02087515959294e-12,6.93e00,0,0.0619392166128471]      
}
