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Table A.4

Triton Earth-based and HST observations and the post-fit residual statistics (after 1901).

Reference Time span Ng site astCat Type No. RMS Type No. RMS
43 Aitken (1904) 1901–1902 13 662 / p 13 0.′′265 s 13 0.′′189
44 Barnard (1903) 1901–1903 73 754 / p 76 0.′′170 s 144 0.′′280
45 Perrine (1903) 1902–1902 8 662 / p 50 0.′′316 s 51 0.′′211
46 Christie (1904) 1902–1902 24 000 / p 51 0.′′202 s 50 0.′′178
47 ROG (1903) 1902–1903 36 000 / p 66 0.′′272 s 64 0.′′267
48 Balanovskiĭ (1923) 1902–1920 75 084 ? p 82 0.′′334 s 82 0.′′438
49 Wirtz (1905) 1903–1903 1 522 / Δαcosδ 1 0.′′566 Δδ 1 0.′′477
50 ROG (1904) 1903–1904 29 000 / p 54 0.′′152 s 54 0.′′217
51 Wirtz (1905) 1903–1905 13 522 / p 13 0.′′749 s 13 0.′′575
52 Barnard (1906a) 1903–1905 39 754 / p 37 0.′′207 s 75 0.′′305
53 ROG (1905) 1904–1905 27 000 / p 57 0.′′192 s 57 0.′′246
54 Albrecht & Smitil (1909) 1905–1905 6 662 ? p 6 0.′′242 s 6 0.′′417
55 Barnard (1906b) 1905–1906 11 754 / p 12 0.′′249 s 20 0.′′374
56 ROG (1906) 1905–1906 24 000 / p 62 0.′′192 s 62 0.′′218
57 Barnard (1907) 1906–1907 17 754 / p 17 0.′′136 s 32 0.′′179
58 ROG (1907) 1906–1907 14 000 / p 28 0.′′215 s 28 0.′′174
59 Christie (1909) 1907–1907 2 000 / p 2 0.′′033 s 1 0.′′261
60 Hammond & Rice (1905) 1907–1908 9 786 / p 9 0.′′142 s 7 0.′′277
61 ROG (1908) 1907–1908 14 000 / p 26 0.′′277 s 26 0.′′285
62 Barnard (1909) 1907–1909 50 754 / p 50 0.′′194 s 96 0.′′273
63 Hammond (1906) 1908–1908 5 786 / p 4 0.′′161 s 5 0.′′165
64 Hall (1911) 1908–1910 53 786 / p 63 0.′′309 s 57 0.′′407
65 Barnard (1910) 1909–1910 25 754 / p 25 0.′′240 s 51 0.′′391
66 ROG (1913) 1910–1910 11 000 / p 39 0.′′140 s 40 0.′′163
67 Barnard (1912) 1910–1912 42 754 / p 43 0.′′216 s 83 0.′′355
68 Hall & Burton (1913) 1911–1911 23 786 / p 38 0.′′248 s 34 0.′′229
69 Burton (1913) 1911–1912 34 786 / p 85 0.′′166 s 83 0.′′196
70 Barnard (1913) 1912–1913 31 754 / p 31 0.′′194 s 31 0.′′277
71 Burton & Hall (1919) 1912–1919 64 786 / p 140 0.′′255 s 140 0.′′329
72 Barnard (1915) 1913–1914 15 754 / p 17 0.′′243 s 17 0.′′265
73 Barnard (1916) 1915–1916 32 754 / p 31 0.′′211 s 31 0.′′300
74 Barnard (1917) 1916–1917 35 754 / p 37 0.′′209 s 34 0.′′265
75 Barnard (1919) 1917–1919 46 754 / p 44 0.′′261 s 46 0.′′258
76 Hall (1920) 1919–1920 17 786 / p 24 0.′′235 s 24 0.′′358
77 Barnard (1927) 1919–1922 75 754 / p 77 0.′′256 s 73 0.′′249
78 Hall (1922) 1920–1921 23 786 / p 23 0.′′246 s 23 0.′′405
79 Bower & Hall (1923) 1921–1923 18 786 / p 18 0.′′271 s 18 0.′′344
80 Neuĭmin & Pokrovskiĭ (1926) 1923–1923 30 084 / p 59 0.′′319 s 59 0.′′404
81 Crawford (1928) 1928–1928 11 662 / p 11 0.′′189 s 11 0.′′248
82 Alden (1940) 1939–1939 30 077 / p 30 0.′′093 s 30 0.′′078
83 Alden (1943) 1940–1942 43 077 / p 43 0.′′080 s 42 0.′′086
84 Yizhakevych et al. (2016) 1963–1990 6 083; 188 g α 10 0.′′606 δ 10 0.′′522
85 Soulié et al. (1975) 1970–1970 1 999 C Δα 3 0.′′496 Δδ 3 0.′′073
86 Walker et al. (1978) 1975–1977 9 689 / Δα cos δ 28 0.′′065 Δδ 28 0.′′095
87 Harrington & Walker (1984) 1979–1983 38 689 / Δα cos δ 110 0.′′024 Δδ 110 0.′′049
88 Walker & Harrington (1988) 1984–1986 15 689 / Δα cos δ 56 0.′′018 Δδ 56 0.′′071
89 Veiga et al. (1996) 1985–1988 13 874 + Δα cos δ 51 0.′′085 Δδ 51 0.′′046
90 Kiseleva et al. (2012) 1986–1993 53 119 f α 54 0.′′421 δ 54 0.′′525
91 Veiga & Vieira Martins (1996) 1989–1994 31 874 + Δα cos δ 415 0.′′329 Δδ 415 0.′′136
92 Kulyk et al. (2009) 1990–1990 2 188 g α 2 0.′′133 δ 2 0.′′323
93 Veiga & Martins (1998) 1995–1997 35 874 p Δα cos δ 739 0.′′144 Δδ 739 0.′′201
94 Qiao et al. (2007) 1996–2006 20 337 r α 918 0.′′035 δ 918 0.′′029
95 USNO (2013) 1998–2013 955 689 g; l α 957 0.′′117 δ 957 0.′′134
96 Owen (1999a) 1999–1999 1 673 ? α 3 0.′′233 δ 3 0.′′168
97 Owen (1999b) 1999–1999 1 673 ? Δα 3 0.′′129 Δδ 3 0.′′039
98 Dourneau et al. (2007) 1999–2005 92 999 g α 92 0.′′204 δ 92 0.′′214
99 Vieira Martins et al. (2004) 2000–2002 4 874 g α 64 0.′′140 δ 64 0.′′097
100 TMO (2014) 2001–2012 82 673 g α 200 0.′′169 δ 200 0.′′075
101 Showalter et al. (2019) 2004–2015 5 250 + Δα cos δ 40 0.′′009 Δδ 40 0.′′010
102 Yu et al. (2019) 2006–2006 3 327 V α 34 0.′′062 δ 34 0.′′061
103 Qiao et al. (2014) 2007–2009 39 327; 337 r α 1094 0.′′064 δ 1094 0.′′064
104 Dourneau et al. (2015) 2007–2013 188 999 g α 188 0.′′075 δ 188 0.′′084
105 USNO (2014) 2013–2014 84 689 g α 84 0.′′142 δ 84 0.′′135
106 Yuan et al. (2021) 2013–2019 41 O49; O44 V α 435 0.′′032 δ 435 0.′′036
107 Wang et al. (2017) 2014–2016 15 286 U α 751 0.′′011 δ 751 0.′′012
108 Present paper (Sect. 2.3) 2019–2020 61 O49 V α 744 0.′′024 δ 744 0.′′025

Notes. Same as Table A.3.

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