History of LAMDA atomic and molecular database
==============================================

17feb2005     FLS    official first release

10may2005     FLS    added extrapolated OCS file

13dec2005    FvdT    added partner ID codes to O, C, C+

13dec2005    FvdT    changed unit of E_up for SO2

03aug2006     FLS    updated SiS datafile with new collision data borrowed from SiO

09aug2007     JHB    corrected misassignments in NH3 rates and
                     brought frequencies to spectroscopic accuracy

13aug2007    FvdT    corrected typo in p-H2O rates at low T. Thanks Dieter Poelman.

13aug2007    FvdT    corrected error in OH datafile. Thanks Javier Goicoechea.

29aug2007    FvdT    corrected typo in e-CH3OH file. Thanks Kalle Torstensson.

25oct2007    FLS     added new CO and SiO collisional rate coefficients

25oct2007    FLS     corrected typo on HNCO page. Thanks Simon Bruderer.
			
25oct2007    FLS     added some clarification as to the J=2-1 transitions in
                     the HCN datafile including the hyperfine structure of the J=1 level. 

25oct2007    FLS     added link to radex paper on astro-ph

19jun2008    FvdT    added data file for NO

19jun2008    FvdT    added data file for N2H+

22jan2009    FvdT    added partner IDs to HC3N and HNCO datafiles. Thanks Ryan Porter.

30jan2009    FvdT    added files for H2O-H2 collisions and for A-type CH3OH. Thanks Lars Kristensen.

27aug2009    FvdT    corrected both H2CO datafiles for an error in the numbering of the K>0 states. Thanks David Neufeld.

30sep2009    FvdT    Added datafiles for CN (thanks Asuncion Fuente) and for CH3CN (thanks Kuo-Song Wang)

12feb2010     JHB    Made datafile for CN with Lique et al data (not yet scaled from He to H2)

15mar2010    FvdT    Added 8(08)-7(17) transition to p-H2O datafiles. Thanks David Flower.

17mar2010    FvdT    Corrected assignments of e-CH3OH J = -/+ K transitions with K >= 6. Thanks Lars Kristensen.

18mar2010    FvdT    Corrected H2CO level numbering from "Green" to strict energy order. Thanks Ryan Porter.

19mar2010    FvdT    Added datafile for high-J CO lines with data from Yang, Stancil et al (2010).

22mar2010    JHB     Added datafile for O2 (not yet scaled from He to H2)

16apr2010    JHB,    Updated A-values for HNC: use 3.05 D for dipole moment (was 2.77 D).
             FvdT    Thanks Megan Reiter.

10aug2010    FvdT    New datafiles for HCN and HNC (Dumouchel et al 2010, MNRAS)

11aug2010    FvdT    Scaled CN and O2 rates from He to H2

26oct2010    FvdT    Added partner ID to hcn@hfs.dat file. Thanks Marco Padovani

03nov2010    FvdT,   Added datafile for HF in collision with H2 and electrons
              JHB

22dec2010    FvdT    added CO datafile with David Neufelds extrapolation to J=80 (thanks Lars Kristensen)
             JHB     added cross-ladder transitions to NO datafile

04jan2011    FvdT    corrected labeling of highest transition (#190) in oh.dat. Thanks Javier Goicoechea

13jan2011       FvdT    updated datafile for H2O at low temperatures using rates from Dubernet et al (2006). Thanks Christian Brinch.

09mar2011       FvdT    removed line breaks in very-high-J datafile for CO. Thanks Markus Roellig.

23may2011       FvdT    added datafile for vibrationally excited H2O. Thanks Alexandre Faure.
                        
17jun2011       FvdT,   updated datafile for atomic O with O-H rates by Abrahamsson et al 2007.
                 JHB
                
30mar2012       FvdT    updated datafiles for H2O (Daniel/Dubernet et al) and HDO (Faure/Wiesenfeld et al)

19jun2012       FvdT,   updated datafile for hyperfine-resolved N2H+, based on CDMS spectrscopy.
                 JHB    Thanks Fabien Daniel and Laurent Pagani.
				 
13aug2012       FvdT    fixed partner ID in p-NH3 datafile (1 -> 2). Thanks Ian Smith (Maquarie). 

21dec2012       FvdT    added datafiles for CH3OH after Rabli & Flower (2010). Thanks Ruud Visser (Michigan).

07jan2013       FvdT    Fixed typo (#collisions 91 -> 378) in datafile for HCl hyperfine structure. Thanks Mher Kazandajin (Leiden).
                        
08feb2013       FvdT    Added partner ID to datafile for plain HCl. Thanks Mher Kazandajin (Leiden).            

11feb2013        JHB    Updated C+ datafile with newer collision rates (although change wrt older file is small),
                        and added datafile including UV transitions of C+.
						
02jul2013       FvdT    Updated H2CO datafiles based on new calculations by Wiesenfeld & Faure (2013),
                        and added comments to SO2 and NH3 entries.
                        
28aug2013       FvdT    Updated CS and SO datafiles based on Lique et al (2006a,b)
                        and added datafiles for H2S and H2CS by scaling H2O and H2CO data.
                        Thanks Maja Kazmierczak.

13nov2013       FvdT    Added new datafile for OH+, and updated HF datafile.

19may2014       FvdT    Minor corrections to HF datafile. Thanks Matthijs van der Wiel.

05jun2014       FvdT    Added new datafile for C2H. Thanks Zsofia Nagy.

13aug2014        JHB    Updated datafile for C+ based on Lique / Wiesenfeld / Goldsmith papers.

18aug2014        JHB    Updated SO2 spectroscopy to CDMS (2005) values

22aug2014       FvdT    Updated SiS spectroscopy to CDMS (2007) values

25aug2014       FvdT    Updated SiC2 spectroscopy to CDMS (2011) values

08sep2014       FvdT    Added datafiles for NH2D based on Daniel et al (2014). See under NH3.

01jun2015       FvdT    Fixed broken link to SiS datafile. Thanks Wing-Fai Thi & Adam Ginsburg.

08jul2016       FvdT    Added datafile for CF+.

13jul2016       FvdT    Added datafile for CH (without hyperfine structure).

15jul2016       FvdT    Added datafile for N+. Thanks Vedad Hodzic.

02nov2016       FvdT    Added datafile for HCl based on Lanza et al (2014).

03nov2016       FvdT    Added electron collisions to HCN datafile after Faure et al 2007 (thanks Paul Goldsmith); 
                        updated HCN spectroscopy to CDMS version 4 (thanks Emmanuel Caux).
                        
08sep2017       FvdT    Fixed collision partner ID tags in o/p NH2D datafiles. Thanks Charlotte Vastel.

16oct2017       FvdT    Updated datafiles for SO2 with new calculations by Balanca et al (2016). 

01dec2017       FvdT    Added datafile for CH2 using new collision data by Dagdigian & Lique (2018).  

08jun2018       FvdT    Updated datafile for HNCO using new collision data by Sahnoun et al 2018, J.Phys.Chem.    
                        Fixed typos in CH2 datafile (not in the actual data).                  

18jul2018       FvdT    Fixed assignments of H2O vibrational levels; changed ordering to classic (v2=bend).
                        Thanks Arthur Bosman & Alex Faure.
                        
10sep2018       FvdT    Added datafile for CN hyperfine structure excited by ortho/para H2 after
                        Kalugina & Lique (2015). Thanks Richard Teague.
                        
18sep2018       FvdT    Added datafile for hyperfine structure of HCN after Ben Abdallah et al (2012).

20dec2018       FvdT    Updated datafile for hyperfine structure of HCN after Hernandez Vera et al (2017).

21dec2018       FvdT    Updated datafile for HC3N-H2 (including hyperfine structure) after Faure et al (2016).        

08feb2019       FvdT    Fixed typo in hyperfine datafile for HCN. Thanks Jens Kauffmann.

18jul2019       FvdT    Added datafiles for hyperfine-resolved CH colliding with H and ortho/para H2. Thanks Paul Dagdigian (JHU).

18oct2019       FvdT    Added datafile for hyperfine-resolved CH2 colliding with ortho/para H2. Thanks Paul Dagdigian (JHU).

07nov2019       FvdT    Updated datafile for atomic O with collision data from Lique et al (2018) for H, H2 and He. 
                        Also includes new H+ collision data based on Spirko et al 2003. Thanks Evelyne Roueff (Paris).

08nov2019       FvdT    Fixed typo in datafile for pure rotational o-H2O: transition 26-16 should be 29-26. Thanks Boy Lankhaar.

27nov2019       FvdT    Updated datafile for SiO with H2 collision data by Balanca et al 2018.

Spring 2020     All     Wrote paper for Atoms describing the database and introducing quality labels for the datafiles.

31jul2020       FvdT    Removed confusing whitespace from O datafile. 
                        Corrected temperature/energy ranges on C3H2, NO, H2S, H2CS pages.
                        Added Bouhafs reference for NH3.
                        Removed broken link from O2 page.
                        Updated reference on HCN page.
				
29sep2020       FvdT    Removed newlines from SO2 high-T datafile which caused ndRadex (but not classic Radex) to crash. 
                        Thanks Akio Tanaguchi & Valentine Wakelam.
						
29sep2020       FvdT    Added datafile for ArH+ after Dagdigian (2018). 

12apr2021       FvdT    Updated spectroscopy for A-type CH3OH. Thanks Martin Cordiner and Nathan Roth (NASA GSFC).

21apr2021       FvdT    Added datafile for PN after Tobola et al (2007). 

22apr2021       FvdT    Added datafile for PO after Lique et al (2018) and Rivilla et al (2020). 

12may2021       FvdT    Added datafiles for H2D+ & D2H+ after Hugo et al (2009).

07jun2021       FvdT    Added datafile for HD after Flower (1999).

07jun2021       FvdT    Fixed typo in molecular weight in HCl datafile. Thanks Gargi Shaw (TIFR Mumbai).

12jul2021       FvdT    Removed explicit http links to molecular subpages following server reconfiguration. 

01aug2021       DJJ     Removed explicit http links from most molecular subpages.

10aug2021       FvdT    Removed explicit http links from HCO+ subpage.

25jul2022       FvdT    Added datafiles for PH3 after Badri et al (2020); added comment to OH datafile.

01aug2022       FvdT    Updated CF+ datafile with o/p H2 collision data (Desrousseaux et al 2021).

02aug2022       FvdT    Updated NO datafile with p-H2 collision data by Ben Khalifa & Loreau (2021).

04aug2022       FvdT    Added datafile for C4H- after Balanca et al (2021).

05aug2022       FvdT    Added datafile for CH+ after Turpin et al (2010) and Faure et al (2017).

08aug2022       FvdT    Updated CS datafile with o/p H2 collision data by Denis-Alpizar et al (2018).

10aug2022       FvdT    Updated HCO+ and DCO+ datafiles with collision data by Denis-Alpizar et al (2020).

13sep2022       FvdT    Added datafiles for NO+ and NS+ after Cabrera-Gonzalez et al (2018, 2020).

15nov2022       FvdT    Corrected typo in recent oH2-HCO+ datafile. Thanks Antonio Usero.

16jun2023       FvdT    Added datafiles for NH and ND after Tobola / Dumouchel et al 2011/2012. Thanks Niall Foley.

20jun2023       FvdT    Added datafile for a-CH3OCHO after Faure +2014. Thanks Alex Faure.

31jul2023       FvdT    Added datafiles for atomic Si & S with H after Yan & Babb (2023a); thanks James Babb.

28aug2023       FvdT    Added collisions of N+ and O++ with H after Yan & Babb (2023b); thanks James Babb.

07dec2023       FvdT    Updated H3O+ datafile with collision data Demes et al (2023) with ortho/para H2.

28mar2024       FvdT    Updated SiS datafile with collision data Klos & Lique (2008) with ortho/para H2. Thanks Lotte de Wit.

16jul2024       FvdT    Added C2S datafile with collision data Godard Palluet & Lique (2023) scaled from He to H2. Thanks Ana-Maria Resiga.

22jul2024       FvdT    Updated documentation for atomic oxygen datafile.

24jul2024       FvdT    Updated NH3 datafiles for rotation-inversion lines (Demes et al 2023) and hyperfine transitions (Loreau et al 2023).

31jul2024       FvdT    Updated PO datafile with 2019 version of CDMS spectroscopy, and fixed level misassignment. Thanks Jennifer Bergner & Sarantos Marinakis.

01aug2024       FvdT    Updated CH3CN datafile with 2016 version of CDMS spectroscopy and Ben Khalifa et al (2023) collision data. Thanks Charlotte Vastel.

14mar2025       FvdT    Updated O++ datafile with electron collisions after Tayal & Zatsarinny (2017). Thanks Bernd Vollmer.

17mar2025       FvdT    Added datafile for PO+ with collision data from Tonolo et al (2024). 

06jun2025       FvdT    Fixed typo in CH3CN data files; thanks Charlotte Vastel. 

22jul2025       FvdT    Fixed typo in PO+ data file; thanks Gargi Shaw.

22jul2025       FvdT    Updated OCS datafile Green & Chapman (1978) with Denis-Alpizar et al (2023). Thanks Zalan Novak.

23jul2025       FvdT    Added datafiles for HC5N and HC7N with collision data from Bop & Lique (2025). 

18dec2025       FvdT    Corrected misassignments in CN hyperfine datafile. Thanks Santiago Perez-Hernando.

19dec2025       FvdT    Updated datafile for OH collisions with H2, H atom, and He. Thanks Benoit Tabone. 

03jun2026       FvdT    Removed quotes from HCN datafile which confused the online calculator. Thanks Kouichiro Nakanishi & Matus Rybak.

13jul2026       FvdT    Updated OH+ datafile with collision partners H atoms (Lique et al 2016) and electrons (Hamilton et al 2018). Thanks Aaron Beyer & Francois Lique. 

21jul2026       FvdT    Updated HCS+ datafile with collision data from Denis-Alpizar et al (2022).
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