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Table A.1

Circumstances of observations.

Site Coordinates Altitude (m) Telescope aperture (m) Instrument/filter Exp. Time/Cycle (s) Observers
Observations that provided light curves that are used in Triton’s atmospheric fit
Agerola 40 37 26.2 N 0.28 0.86/0.86 L. Morrone
Italy 14 33 50.6 E CCD/clear
660.0
Albox 37 24 20.0 N 0.41 2.00/3.34 J. L. Maestre Garcia
Spain 02 09 07.0 W CCD/clear
485.0
Alcantarilha 37 07 58.8 N 0.36 0.33/0.64 F. Marques Dias
Portugal 08 21 54.0 W CCD/red
65.0
Algiers 36 47 52.1 N 0.81 0.04/0.04 D. Baba Aissa,
Algeria 03 01 56.2 E video/clear Z. Grigahcene
331.0
Ariana 36 53 03.0 N 0.20 0.50/0.60 S. Kamoun
Tunisia 10 11 42.0 E CCD/clear
5.0
Athens 37 58 06.8 N 0.40 1.00/3.50 K. Gazeas,
Greece 23 47 00.1 E CCD/clear E. Karampotsiou,
250.0 L. Tzouganatos
Belesta 43 26 39.4 N 0.30 0.64/0.64 P. André,
France 01 48 58.6 E video/clear M. Llibre,
235.0 F. Pailler
Boissettes 48 31 41.0 N 0.30 0.50/0.50 M. Irzyk
France 02 37 28.0 E CCD/clear
75.0
Calar Alto 37 13 24.7 N 1.23 VIS: 0.063/0.063 R. Hueso,
(2 channels) 02 32 44.9 W SCMOS/VIS: (0.4-1.0 µm) SWIR: 0.11/0.11 S. Pérez-Hoyos,
Spain 2160.0 SWIR: (1.0-1.7 µm)) A. Sánchez-Lavega
Calern 43 45 13.2 N 1.04 0.10/0.11 J. Ferreira, P. Machado,
France 06 55 22.4 E CCD/I’ P. Tanga, J.-P. Rivet
1268.0
Catania 37 41 35.8 N 0.80 0.80/1.70 G. Leto,
Italy 14 58 29.1 E CCD/clear R. Zanmar Sanchez,
1725.0 P. Bruno, G. Occhipinti
Clanfield 50 56 19.2 N 0.61 0.16/0.16 D. Briggs,
England 01 01 10.6 W video/clear S. Broadbent
155.0
Constância 39 29 41.6 N 0.51 0.64/0.64 R. Gonçalves,
Portugal 08 19 25.2 W video/clear M. Ferreira
147.0
Côtes de Meuse 49 00 07.2 N 0.83 0.06/0.06 S. Renner,
France 05 41 06.6 E EMCCD/clear M. Kaschinski
284.0
Cuq les Vielmur 44 29 05.0 N 0.20 2.00/4.00 A. Cailleau,
France 01 55 05.0 E CCD/clear V. Pic,
300.0 L. Granier
Dark Sky Obs. 36 15 09.6 N 0.36 1.50/2.50 J. Pollock,
United States 81 25 01.2 W CCD/clear D. B. Caton
960.0 V. Kouprianov
Elvas 38 50 47.6 N 0.27 0.30/0.30 W. Beisker
Portugal 07 12 27.4 W CCD/clear
285.0
Felsina Obs. 44 21 22.0 N 0.40 0.64/0.64 R. Di Luca,
Italy 11 09 09.0 E video/clear D. Alboresi
652.0
Forcarei 42 36 38.4 N 0.51 0.64/0.64 R. Iglesias-Marzoa,
Spain 08 22 15.1 W video/clear H. González
673.0
Hartley Wintney 51 18 23.2 N 0.36 1.00/3.31 G. Thurston
England 00 54 44.9 W 65.0 CCD/Johnson V
Heimos 37 59 08.1 N 2.28 0.60/0.674 E. M. Xilouris, I. Alikakos,
Greece 22 11 54.6 E CCD/V+R A. Gourzelas,
2323.0 V. Charmandaris
Hornchurch 51 33 06.4 N 0.24 0.64/0.64 P. Denyer
England 00 11 38.8 E 14.0 video/clear
Ithaca 42 27 29.4 N 0.60 0.20/0.36 J. Lloyd,
United States 76 23 05.5 W 530.0 CCD/clear M. El Moutamid, C. Lamarche
Javalambre Astrophysical 40 02 30.6 N 0.40 Tx40 CCD/clear 2.00/2.50 R. Iglesias-Marzoa,
Observatory (2 telescopes) 01 00 57.6 W 0.28 Excalibur CCD/clear 2.00/3.00 J. Abril Ibáñez,
Spain 1955.0 M. Chioare Díaz Martín
Kryoneri 37 58 19.0 N 1.20 0.19/0.20 E. M. Xilouris,
(2 channels) 22 37 07.0 E sCMOS/R and I A. Liakos,
Greece 930.0 V. Charmandaris
La Palma 28 45 43.2 N 2.00 0.6/0.635 J. Marchant,
Spain 17 52 39.3 W Liverpool Tel. B. Sicardy
2340.0 CCD/I+Z
La Carolina 38 16 27.0 N 0.64 0.15/0.15 S. Alonso,
Spain 03 36 55.0 W CCD/clear A. Román Reche
595.0
La Roche-Sur-Yon 46 32 48.4 N 0.40 0.20/0.20 J. Desmars,
France 01 19 37.8 W CMOS/clear R. Tanguy,
48.0 J. David
Le Beausset 43 11 38.1 N 0.25 0.64/0.64 S. Lisciandra,
France 05 48 05.9 E video/clear J. F. Coliac
197.0
Marrakech 31 35 16.2 N 0.60 2.5/5.5 A. Daassou, K. Barkaoui,
Morocco 08 00 46.9 W CCD/clear Z. Benkhaldoun,
494.0 M. Guennoun, J. Chouqar
Nancy 48 39 51.6 N 0.25 1.50/2.10 D. Lavandier,
France 06 09 28.7 E CCD/luminance D. Walliang
284.0
Newark 43 00 23.7 N 0.25 0.53/0.53 B. Timerson
United States 77 07 06.5 W video/clear
165.0
Oukaïmeden 31 12 23.0 N 0.50 2.00/6.80 C. Rinner
Morocco 07 51 59.0 W CCD/clear
2727.0
Paris 48 52 17.0 N 0.15 0.25/0.25 R. Chauvet
France 02 23 07.0 E CCD/clear
92.0
Pic du Midi Obs. 42 56 12.0 N 0.60 0.05/0.05 D. Berard
France 00 08 31.9 E EMCCD/visible
2862.0
Puimichel 43 58 53.1 N 0.60 0.10/0.10 S. Moindrot
France 06 02 10.0 E EMCCD/visible
714.0
Reading 51 30 23.8 N 0.30 0.64/0.64 T. V. Haymes
England 00 48 58.1 W video/red
80.0
Sabadell 41 33 00.2 N 0.50 0.16/0.16 A. Selva,
Spain 02 05 24.8 E video/clear C. Perello,
224.0 V. Cabedo
Saint Caprais 43 52 25.9 N 0.20 CCD/Johnson V 1.00/1.58 A. Klotz,
(2 telescopes) 01 43 05.8 E 0.94 SWIR/clear 0.05/0.08 Y. Rieugnie,
France 185.0 A. N. Klotz
Seysses 43 30 06.3 N 0.31 0.32/0.32 M. Boutet
France 01 17 20.3 E video/UV-IR block
183.0
Sierra Nevada 37 03 51.0 N 1.50 0.04/0.04 J. L. Ortiz,
Spain 03 23 05.0 W video/clear P. Santos-Sanz,
2925.8 V. Casanova
Southampton 50 55 18.9 N 0.40 0.25/0.25 N. J. Haigh
England 01 22 28.1 W CMOS/clear
16.0
Sternwarte Stuttgart 48 46 56.7 N 0.41 0.64/0.64 A. Eberle
Germany 09 11 47.4 E video/clear K. Rapp
346.0
Steyning 50 53 16.0 N 0.28 2.00/4.00 N. Quinn
England 00 19 57.0 W CCD/luminance
20.0
Tournefeuille 43 34 58.8 N 0.32 0.25/0.25 M. Delcroix
France 01 19 35.4 E CCD/clear
163.0
UCL Observatory 51 36 47.6 N 0.35 1.00/2.38 S. J. Fossey,
London 00 14 32.3 W CCD/luminance C. Arena
England 82.0
Valencia 39 56 42.0 N 0.50 1.00/2.50 V. Peris,
Spain 01 06 05.4 W CCD/clear O. Brevia
1280.0
Varages 43 36 44.6 N 0.50 2.30/2.30 F. Jabet
France 05 57 49.1 E InGaAs/RG1000
300.0 (effective λ=1.3 µm)
Observations that provided light curves that are not used in Triton’s atmospheric fit
Abingdon 51 37 53.1 N 0.30 0.16/0.16 J. Talbot
England 01 16 55.2 W video/clear
59.0
Agerola 40 37 26.2 N 0.50 0.50/0.50 A. Noschese,
Italy 14 33 50.6 E CMOS/clear A. Vecchione
660.0
Calar Alto 37 13 24.7 N 0.36 1.00/1.00 J. F. Rojas,
Spain 02 32 44.9 W CCD/clear A. Sánchez-Lavega
2160.0 SWIR
Caserta 41 16 11.3 N 0.24 2.00/2.46 L. Cupolino
Italy 13 56 28.9 E CCD/clear
407.0
Catania 37 30 24.0 N 0.28 0.64/0.64 C. Scalia,
Italy 15 05 35.5 E video/clear R. Lo Savio,
50.0 G. Giardina
Charles Fehrenbach 50 05 01.5 N 0.36 0.28/0.30 P. Morel
Observatory, La Biette 03 46 34.4 E CCD/clear
France 191.0
Glyfada-Athens 37 52 33.6 N 0.35 1.00/1.15 E. I. Kardasis,
Greece 23 46 12.0 E CCD/clear A. Christou
100.0
Guirguillano 42 42 42.2 N 0.31 2.56/2.56 I. Ordóñez-Etxeberria,
Spain 01 51 54.3 W video/clear P. Martorell,
595.0 J. Salamero
Hamsey Green 51 19 09.4 N 0.28 1.00/1.00 M. Jennings
England 00 04 01.4 W video/clear
170.0
Houten 52 01 59.3 N 0.36 0.41/0.41 J. Sussenbach
Netherlands 05 09 44.2 E CCD/
2.0 685 nm long pass
La Hita Observatory 39 34 06.8 N 0.77 CCD/luminance 1.00/3.55 N. Morales, J. L. Ortiz,
(2 telescopes) 03 11 09.5 W 0.40 video/clear 0.30/0.30 F. Organero, L. Ana,
Spain 695.0 F. Fonseca, P. Santos-Sanz
Lamandine 44 12 35.0 N 0.30 0.06/0.06 M. Miniou
France 01 42 01.7 E CCD/clear
297.0
La Sagra Observatory 37 58 58.1 N 0.36 each 1.00/3.79 (tetra1) N. Morales,
(4 telescopes) 02 34 05.1 W tetra1, tetra2: CCD/clear 1.00/3.56 (tetra2) J. L. Ortiz,
Spain 1530.0 tetra3, tetra4: video/clear 0.20/0.20 P. Santos-Sanz
Leeds 53 50 15.6 N 0.20 1.28/1.28 A. Pratt
England 01 36 27.8 W 113.0 video/IR-UV block
Lias 43 33 33.3 N 0.40 0.13/0.13 F. Metz,
France 01 06 34.4 E CCD/clear D. Erpelding,
300.0 J.-P. Nougayrède
Louargat 48 32 16.7 N 0.30 0.20/0.20 B. Reginato,
France 03 21 30.5 W CMOS/L E. Reginato
196.0
Massa 44 01 17.2 N 0.20 5.12/5.12 (1st half) P. Baruffetti
Italy 10 07 56.7 E video/clear 2.56/2.56 (2nd half)
30.0
Montigny le Bretonneux 48 45 54.0 N 0.28 0.50/0.51 O. Dechambre
France 02 00 52.0 E CCD/clear
168.0
Mount Agliale Observatory 43 59 43.1 N 0.50 1.50/3.23 F. Ciabattari
Italy 10 30 53.8 E CCD/clear
750.0
Nerpio 38 09 56.0 N 0.32 1.00/16.11 E. Briggs
Spain 02 19 35.0 W CCD/clear
1650.0
Neutraubling 48 59 23.1 N 0.28 0.16/0.16 B. Kattentidt
Germany 12 12 57.3 E video/clear
333.0
Nice 43 43 32.9 N 0.13 2.00/2.00 M. Conjat
France 07 17 59.4 E video/clear
350.0
Observatoire de Biscarmiau 43 08 40.4 N 0.31 0.64/0.64 G. Vaudescal
France 00 03 31.8 E video/clear
488.0
Observatoire des 44 24 29.7 N 0.80 2.00/2.00 M. Bretton
Baronnies Provençales 05 30 54.4 E CCD/clear
France 820.0
Observatoire Monplaisir 43 40 58.3 N 0.28 1.03/1.49 J. Ardissone
France 04 38 32.6 E CCD/clear
5.0
Orcemont 48 35 28.0 N 0.10 10.00/10.15 P. Delay
France 01 48 45.0 E CCD/IR cut
165.0
Overath 50 57 11.4 N 0.20 0.32/0.32 B. Klemt
Germany 07 14 53.1 E video/clear
200.0
Pfünz 48 53 26.0 N 0.28 1.00/1.20 B. Gährken
Germany 11 16 23.0 E CCD/clear
488.0
Pic du Midi Obs. 42 56 12.0 N 1.05 0.10/0.10 F. Colas
France 00 08 31.9 E sCMOS/clear
2862.0
Rosenfeld-Brittheim 48 17 17.8 N 0.80 0.40/0.40 S. Kowollik,
Germany 08 40 38.9 E CMOS/UV-IR block R. Bitzer
700.0
Saint Chéron 48 32 16.6 N 0.18 0.08/0.08 J. Berthier
France 02 07 51.7 E video/clear
160.0
Saint-Maurice-Navacelles 43 50 39.3 N 0.21 0.64/0.64 J. Lecacheux
France 03 33 47.3 E CCD/clear
583.0
Saint Michel 43 54 23.3 N 0.60 0.05/0.05 E. Meza,
France 05 43 34.7 E EMCCD/clear O. Labrevoir
564.0
Selztal Obs. 49 50 00.0 N 0.51 0.8/0.8 G. M. Piehler
Friesenheim 08 15 00.0 E CMOS/clear
Germany 110.0
Seysses 43 30 06.3 N 0.23 0.32/0.32 J. Sanchez
France 01 17 20.3 E video/UV-IR block
183.0
Sierra Nevada 37 03 51.0 N 0.90 1.00/3.33 J. L. Ortiz,
Spain 03 23 05.0 W CCD/clear P. Santos-Sanz,
2925.8 V. Casanova
Valle d’Aosta 45 47 23.1 N 0.81 0.2/0.2 D. Cenadelli,
Italy 07 28 42.3 E EMCCD/clear J.-M. Christille,
1675.0 B. Sicardy
Stations with technical or weather problems that provided no light curves
Bilbao 43 15 43.6 N 0.5 S. Pérez-Hoyos,
Spain 02 56 54.6 W CCD/clear A. Sánchez-Lavega
47.0
Buthiers 48 17 30.0 N 0.59 0.10/0.10 J. L. Dauvergne
France 02 26 18.0 E 87.0 CMOS/L
Cavarc Observatory 44 40 35.2 N 0.50 J. Rudelle,
France 00 37 43.1 E 100.0 CMOS/clear B. Tregon
Comthurey 53 15 57.8 N 0.18 K. Guhl
Germany 13 11 24.6 E 74.0
Emmendingen 48 06 14.2 N 0.18 3.00/3.33 K.-L. Bath
Germany 07 51 28.6 E CMOS/clear
210.0
Eppstein-Bremthal 50 08 17.4 N 0.25 O. Klös
Germany 08 21 50.4 E video/clear
256.0
Gnosca 46 13 53.2 N 0.40 S. Sposetti
Switzerland 09 01 26.5 E
260.0
Grapfontaine 49 48 54.2 N 0.28 F. Van Den Abbeel
Belgium 05 23 57.5 E video/clear
445.0
Hamburg-Bergedorf 53 28 50.0 N 0.60 V. Perdelwitz
Germany 10 14 29.0 E CCD/clear
25.0
Handeloh 53 14 06.4 N 0.35 K. von Poschinger
Germany 09 49 46.7 E CCD/clear
60.0
Observatory Hoher List 50 09 42.0 N 1.00 M. Miller, G. Herzogenrath,
Eifel 06 50 55.0 E CCD/clear D. Frangenberg, L. Brandis,
Germany 549.0 I. Pütz
Labastide-Murat 44 38 43.2 N 0.20 0.32/0.32 E. Frappa
France 01 34 13.9 E video/clear
445.0
Lauenbrück 53 12 26.6 N 0.50 M. Kretlow
Germany 09 34 36.1 E CCD/clear
31.0
Malvilliers 47 01 58.5 N 0.30 L. Falco
Switzerland 06 52 03.0 E 845.0 CCD/clear R. Leiva
EXPO Observatory 52 15 45.0 N 1.12 0.04/0.04 P. Riepe,
Melle 08 20 12.0 E video/clear E. Bredner
Germany 185.0
Meudon 48 48 18.3 N 1.00 T. Widemann, W. Thuillot,
France 02 13 51.6 E CMOS/clear D. Hestroffer,
157.6 E. Lellouch
Ondrejov 49 54 33.8 N 0.50 0.04/0.04 M. Jelínek,
Czech Republic 14 46 52.9 E EMCCD/R J. Štrobl
530.0
Saint-Luc 46 13 41.8 N 0.30 E. Bouchet,
Obs. F.-X. Bagnoud 07 36 45.6 E CCD/clear M. Cottier
Switzerland 2200.0
Saulges 47 59 02.0 N 0.25 0.20/0.20 T. Midavaine
France 00 24 30.0 W 97.0 video/clear
TRAPPIST-North 31 12 22.0 N 0.60 E. Jehin
Oukaïmeden 07 51 59.0 W CCD/clear
Morocco 2751.0
Uranoscope 48 44 32.0 N 0.28 video/clear 0.25/0.25 A. Leroy,
(2 telescopes) 02 44 32.0 E 0.36 CMOS/clear 0.25/0.25 S. Bouley
France 110.0
Valée de Joux 46 37 06.0 N 0.61 1.00/1.15 R. Barbosa,
Switzerland 06 13 10.0 E CMOS/clear R. Behrend
1145.0 M. Spano
Vierzon 47 13 23.7 N 0.25 L. Rousselot
France 02 03 09.8 E CMOS/clear
97.0
Zurich 47 24 27.8 N 0.50 2.00/4.00 S. Gallego,
Switzerland 08 30 39.5 E CCD/Johnson R L. Tortorelli
553.0
Previous occultations
18 July 1997
Brownsville 25 58 40.9 N 0.35 0.5/0.5 W. B. Hubbard,
United States 97 32 11.3 W CCD/clear H. J. Reitsema,
9.0 R. Hill
Bundaberg 24 56 37.5 S 0.48 0.33/0.33 E. Hummel, M. Moy,
Australia 152 22 35.4 E CCD/clear I. Pink, R. Walters
10.0
Ducabrook 23 53 55.0 S 0.35 0.66/0.66 L. Ball,
Australia 147 26 40.0 E CCD/clear G. Neilsen
320.0
Lochington 23 56 42.5 S 0.35 0.66/0.66 W. Beisker,
Australia 147 31 24.8 E CCD/clear S. Hutcheon
270.0
Observations that provided data that are not used in Triton’s atmospheric fit
Ballandean 28 49 05.0 S 0.48 K. Lay
Australia 151 48 36.0 E Visual
710.0
Ipswich ~27 38 S 0.30 10 B. Downs
Australia ~152 45 E CCD/clear grazing
~40
The Gap 27 27 42.3 S 0.40 P. Anderson
Australia 152 55 58.0 E Visual
176.0
21 May 2008
Hakos 23 14 11.0 S 0.5 0.67/1.49 K.-L. Bath
Namibia 16 21 41.5 E CCD/clear
1825.0
Hakos 23 14 11.0 S 0.45 0.84/1.0 B. Sicardy
Namibia 16 21 41.5 E CCD/clear
1825.0
Maïdo 21 04 15.5 S 0.23 2.56/2.56 J. Lecacheux
La Réunion Island 55 23 14.2 E CCD/clear T. Payet
France 2200.0
Tivoli 23 27 40.2 S 0.35 1.48/1.48 H.-J. Bode
Namibia 18 01 01.2 E CCD/clear
1344
Observations that provided light curves that are not used in Triton’s atmospheric fit
Piton Lacroix 21 12 54.4 S 0.28 2/2 E. Frappa
La Réunion Island 55 38 38.5 E CCD/clear
France 2330.0
Stations with technical or weather problems that provided no light curves
Grünau ~27 44 S 0.30 clouded out W. Beisker
Namibia ~18 23 E
~1100
Hakos 23 14 11.0 S 0.28 C. Boissel
Namibia 16 21 41.5 E (IOC?) A. Doressoundiram
1825
Les Makes 21 11 57.4.0 S 0.35 clouded out B. Payet
La Réunion Island 55 24 34.5.0 E CCD/clear
France 972
Maïdo 21 04 15.5 S 0.30 wind shaking J. Françoise
La Réunion Island 55 23 14.2 E video/clear B. Mondon
France 2200.0
Piton Lacroix 21 12 52.0 S 0.28 moisture A. Peyrot
La Réunion Island 55 38 35.0 E CCD/clear J.-P. Teng-Chuen-Yu
France 2350.0
Springbok 29 39 40.3 S 0.30 clouded out T. Widemann
South Africa 17 52 58.9 E CCD/clear
951
Sutherland 32 22 43.8 S 1.0 outside shadow G. Blanchard
South Africa 20 48 42.0 E CCD/clear M. Castets
1760 F. Colas
Tivoli 23 27 40.2 S 0.27 ?/? B. Thome
Namibia 18 01 01.2 E CCD/clear
1344

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