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Now it is 8.5 mag (July 12, Jakub Cerny). It keeps so bright as 6-8 mag for a long time from 2011 to 2012, and will be observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it keeps observable in good condition until October when it brightens up to 6.5 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 22 3.35 9 15.2 1.684 2.540 138 8.1 2:04 (180, 46)
July 30 21 43.14 11 35.7 1.570 2.474 145 7.8 1:16 (180, 43)
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It has returned after 27-year blank since 1984. It brightened very rapidly, and became very bright as 9.1 mag (July 10, Tsutomu Seki). However, it locates extremely low and very hard to observe.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 6 24.82 25 20.2 1.588 0.781 24 10.9 5:33 (240, -1)
July 30 7 4.74 21 13.3 1.602 0.753 21 10.6 5:29 (245, -2)
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It will approach to the sun down to 0.5 A.U. in September, and it is expected to brighten up to 6 mag. Now it is 10.5 mag, brightening rapidly (July 21, Michael Mattiazzo). In the Southern Hemisphere, it keeps observable until early September when it becomes 7 mag. In the Northern Hemisphere, it is already low and it becomes unobservable in August. But after appearing in the morning sky in October, it becomes observable in the excellent condition at midnight.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 11 10.73 3 58.3 1.613 1.191 47 11.8 18:39 (117, 27)
July 30 11 22.25 2 46.4 1.537 1.070 43 11.2 18:43 (112, 24)
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Very bright and visible visually as 12.8 mag (July 6, Jakub Cerny). It will brighten up to 11.5 mag in summer and autumn. In the Northern Hemisphere, it keeps observable until winter, although it becomes very low from mid August to late September. In the Southern Hemisphere, it is not observable until November.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 3 45.98 71 6.0 1.274 1.217 63 12.4 5:33 (191,-19)
July 30 5 59.63 73 9.7 1.269 1.141 58 12.1 5:29 (196,-26)
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It will be 12-13 mag in June and July. However, it is not observable at all due to the bad condition in this apparition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 8 53.97 21 48.7 2.391 1.407 10 12.8 18:39 (110,-10)
July 30 9 18.26 20 27.5 2.410 1.423 10 13.0 18:43 (108,-10)
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Now it is bright as 11.3 mag (July 4, Juan Jose Gonzalez). It will brighten up to 11-12 mag in autumn. In the Northern Hemisphere, it keeps observable for a long time until 2012 spring, although it becomes low temporarily in July. In the Southern Hemisphere, it is not observable until November.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 7 46.11 63 33.5 2.655 2.042 43 13.0 5:33 (212,-32)
July 30 7 50.35 61 51.2 2.629 2.023 43 13.0 5:29 (213,-30)
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First return of a new periodic comet which brightened up to 13 mag in a major outburst in 2005. Now it is very bright as 12.0 mag and visible visually (July 10, Marco Goiato). It will be observable in an excellent condition from summer to winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 23 20.73 0 53.2 1.357 2.139 128 13.1 3:20 (180, 54)
July 30 23 20.49 1 50.4 1.309 2.146 134 13.0 2:52 (180, 53)
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Now it is 17.5 mag (July 5, Hidetaka Sato). It will approach to the earth down to 0.06 A.U. and brighten up to 7-8 mag in mid August. It will brighten rapidly after this. In the Northern Hemisphere, it is observable until early August when it brightens up to 10 mag. Then it goes away to the southern sky and becomes unobservable temporarily But it appears in the morning sky again at 7 mag in mid September, then it keeps observable while fading gradually. In the Southern Hemisphere, it is observable until mid August when it brightens up to 8 mag. But after that, it is not observable until winter when it becomes fainter than 16 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 21 52.02 -23 16.8 0.350 1.342 155 14.9 1:52 (180, 78)
July 30 21 59.83 -27 24.7 0.244 1.246 158 13.3 1:32 (180, 82)
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Very bright and visible visually as 13.0 mag (July 12, Jakub Cerny). It will be observable at 13 mag in good condition in summer. In the Northern Hemisphere, it keeps observable at 14-15 mag in good condition until autumn. In the Southern Hemisphere, it will become low after August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 20 43.72 18 29.3 1.044 1.937 140 13.5 0:45 (180, 37)
July 30 20 11.14 23 42.4 1.056 1.929 137 13.5 23:37 (180, 31)
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Now it is bright and visible visually at 13.1 mag (June 6, Chris Wyatt). It keeps bright as 13-14 mag for a long time after this until 2013. It is not observable in the Northern Hemisphere, but it is observable in good condition in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 10 53.87 -75 35.5 5.330 5.583 99 13.5 18:39 ( 16, 42)
July 30 10 56.89 -75 7.2 5.367 5.573 96 13.5 18:43 ( 18, 40)
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Now it is 13.2 mag and visible visually (July 5, Jakub Koukal). It will be observable at 13-14 mag for a long time from 2011 to 2012.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 19 0.92 -6 37.1 4.558 5.518 158 13.9 22:56 (180, 62)
July 30 18 51.81 -7 3.4 4.579 5.499 152 13.9 22:20 (180, 62)
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Now it is 15.2 mag (June 24, Hidetaka Sato). It brightens up to 12 mag in autumn. But the condition is bad. In the Northern Hemisphere, it is already extremely low, and it will be unobservable in August. After the perihelion passage, it is only observable from December to February in the evening very low sky. In the Southern Hemisphere, it keeps observable for a long time, although it keeps locating extremely low. The component B was not detected, fainter than 20 mag (May 14, Hidetaka Sato).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 10 52.12 15 5.0 2.143 1.504 39 14.3 18:39 (122, 16)
July 30 11 7.81 12 59.7 2.111 1.439 37 13.9 18:43 (118, 15)
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Now it is bright as 12.5 mag and visible visually (June 23, Chris Wyatt). It is getting lower in the evening sky. It has been already too low to observe in the Northern Hemisphere. It will be unobservable in mid August in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 11 5.09 -0 19.2 6.892 6.259 48 14.2 18:39 (112, 29)
July 30 11 9.10 -0 43.5 6.970 6.259 42 14.2 18:43 (107, 24)
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Already bright and visible visually at 14.6 mag (July 6, Jakub Cerny). It will be observable in good condition at 12 mag in autumn and winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 23 55.45 6 41.9 1.790 2.436 117 14.7 3:55 (180, 48)
July 30 23 58.71 7 9.3 1.693 2.407 123 14.5 3:30 (180, 48)
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Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, probably due to an impact of a small object. It was very bright as 11.5 mag visually (Dec. 17, Juan Jose Gonzalez). It had a dust coma still on Jan. 9 (Joseph Brimacombe). Now it is stellar at 13.8 mag (Apr. 5, Juan Jose Gonzalez). It is getting lower in the evening sky, and will be unobservable in August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 10 50.78 19 42.3 3.471 2.747 38 14.6 18:39 (125, 13)
July 30 11 1.13 18 25.4 3.510 2.735 34 14.5 18:43 (121, 10)
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It brightened rapidly and reached up to 15.4 mag now (June 30, P. Dupouy). It will be observable at 15 mag in good condition from July to October. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 20 32.77 -21 15.4 1.336 2.348 173 15.2 0:33 (180, 76)
July 30 20 28.39 -22 28.4 1.326 2.339 175 15.1 0:01 (180, 77)
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Now it is fading slowly, but still bright and visible visually as 13.8 mag (July 12, Jakub Cerny). It will keep 14-15 mag until mid September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 23 45.01 -1 19.9 2.449 3.128 123 15.1 3:45 (180, 56)
July 30 23 38.62 -4 9.6 2.391 3.171 132 15.1 3:11 (180, 59)
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Now it is 14.8 mag and visible visually (July 5, Jakub Cerny). It keeps 15 mag from 2011 summer to 2012 summer. But it is not observable around the perihelion. It is observable in good condition in the Northern Hemisphere in 2011, and in the Southern Hemisphere in 2012.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 13 32.22 17 48.3 2.914 2.844 75 15.4 18:39 (160, 35)
July 30 13 39.12 16 18.0 2.945 2.803 71 15.3 18:43 (152, 34)
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It has brightened in outburst up to 14 mag in 2006 January. Another outburst occured in late May, and brightened up to 14.3 mag (June 4, Juan Jose Gonzalez). It is still bright as 14.5 mag (June 27, Jakub Koukal). It will be getting lower in the evening sky after this, and will be unobservable in October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 16 2.51 -16 7.0 7.794 8.377 122 15.4 19:59 (180, 71)
July 30 16 1.97 -16 8.5 7.875 8.358 115 15.5 19:31 (180, 71)
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It is expected to keep 14-15 mag for a long time from 2011 summer to 2012 summer. The condition is good in the Southern Hemisphere, and it keeps observable for a long time. In the Northern Hemisphere, it is not observable until 2012 August. However, this comet was observed only during two days in 2010 June. So the orbital elements are extremely uncertain.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 16 20.27 -49 53.8 2.467 3.178 126 15.5 20:16 ( 0, 75)
July 30 16 8.31 -50 28.5 2.507 3.128 119 15.4 19:37 ( 0, 74)
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Brightening rapidly. Now it is 15.4 mag (June 25, Tzec Maun Observatory, Mayhill). It was observed as bright as 14.0 mag visually (June 27, Jakub Koukal). It is expected to be 13 mag and will be observable in good condition in 2013. In the Northern Hemisphere, it keeps observable for a long time after this. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 2 2.77 61 27.4 7.730 7.494 72 15.6 5:33 (184, -7)
July 30 1 59.48 62 12.4 7.618 7.465 77 15.5 5:29 (180, -7)
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Now it is 15.0 mag (June 26, Tzec Maun Observatory). Brighter than originally predicted. It will be observable at 15-16 mag in good condition from summer to autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 23 20.21 -15 7.3 1.273 2.109 133 15.9 3:20 (180, 70)
July 30 23 21.72 -15 42.5 1.233 2.115 140 15.8 2:54 (180, 71)
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It reached up to 14 mag in 2010 autumn and winter. Now it is fading. In the Southern Hemisphere, it keeps observable in good condition while fading gradually. In the Northern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 5 56.99 -35 8.2 3.699 3.369 63 16.0 5:33 (290, 37)
July 30 6 3.02 -37 24.0 3.677 3.403 66 16.0 5:29 (292, 41)
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Now it is 15.9 mag (June 27, P. Dupouy). It will be fading very slowly after this. In the Northern Hemisphere, it keeps observable for a long time until 2012 spring when it fades down to 17-18 mag. It will not be observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 22 56.48 52 45.5 4.853 5.100 98 16.0 2:56 (180, 2)
July 30 22 54.89 53 1.6 4.815 5.126 102 16.0 2:27 (180, 2)
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Now it is 17.1 mag (June 24, J. F. Hernandez). It will brighten up to 13 mag in next winter. But the condition of this apparition is bad, and it will not be observable around the perihelion passage. It will be unobservable soon in the Northern Hemisphere. It will be observable until September when it brightens up to 15 mag in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 11 39.30 8 11.5 2.514 2.060 52 16.1 18:39 (126, 29)
July 30 11 50.81 6 31.7 2.536 2.023 49 16.0 18:43 (121, 27)
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Now it is 15.5 mag (July 1, Hidetaka Sato). It will be fading gradually, and will be fainter than 18 mag in September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 0 31.77 -12 30.9 1.672 2.312 116 16.2 4:31 (180, 67)
July 30 0 32.11 -13 4.7 1.641 2.353 122 16.4 4:04 (180, 68)
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It became bright as 12 mag in 2010. Now it is fading. It has already faded down to 17.2 mag (July 5, Hidetaka Sato).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 2 12.53 4 19.9 3.530 3.627 87 16.3 5:33 (195, 50)
July 30 2 15.81 4 28.5 3.449 3.647 93 16.2 5:29 (187, 50)
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Now it is 16.0 mag (July 6, C. Rinner, F. Kugel). It will brighten up to 16 mag from summer to autumn, and will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 16 11.80 -3 15.1 1.438 2.138 120 16.2 20:09 (180, 58)
July 30 16 15.27 -4 6.3 1.481 2.121 115 16.2 19:45 (180, 59)
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It is expected to be bright as 9 mag from 2012 to 2013. Now it is 16.7 mag (June 19, Toshiyuki Takahashi). In the Northern Hemisphere, although it becomes low temporarily in 2011 autumn, it keeps observable in good condition for a long time until 2012 autumn when the comet brightens up to 10 mag. In the Southern Hemisphere, it is hardly observble before the perihelion passage. But it becomes observable in good condition since 2013 after the perihelion passage.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 11 54.05 55 59.3 6.485 5.959 54 16.3 18:39 (158, -8)
July 30 11 59.70 55 1.3 6.457 5.901 52 16.3 18:43 (154, -9)
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Now it is 17.6 mag (June 29, Hidetaka Sato). In the Southern Hemisphere, it keeps observable at 16-17 mag for a long time from summer to winter. It is not observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 22 19.20 -64 25.3 1.505 2.300 130 16.5 2:20 ( 0, 61)
July 30 21 52.95 -70 57.7 1.501 2.257 126 16.4 1:27 ( 0, 54)
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It reached up to 7.7 mag in 2009 summer (2009 Aug. 13, Chris Wyatt). Now it is fading. It has already faded down to 15.3 mag (June 29, Hidetaka Sato). It will never be observable again in the Northern Hemisphere. In the Southern Hemisphere, it keeps observable in good condition until 2011 autumn when it becomes fainter than 18 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 15 34.91 -62 56.8 6.685 7.215 117 16.6 19:32 ( 0, 62)
July 30 15 29.23 -62 19.6 6.810 7.263 112 16.7 18:59 ( 0, 63)
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Appearing in the morning sky. It will brighten rapidly, and will be obserbale at 14 mag in good condition in autumn. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 4 25.99 5 53.5 2.072 1.715 55 17.0 5:33 (234, 32)
July 30 4 45.98 6 33.6 1.997 1.675 56 16.8 5:29 (232, 33)
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Now it is 17.4 mag (June 24, J. F. Hernandez). It will brighten up to 15 mag in autumn and winter. But the condition of this apparition is bad. It is not observable around the perihelion passage. It will be getting lower in the evening sky after this. In the Southern Hemisphere, it will be observable until September when it brightens up to 16 mag. In the Northern Hemisphere, it will be unobservable soon.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 12 8.07 -9 37.0 2.262 2.074 66 17.1 18:39 (116, 47)
July 30 12 19.25 -10 37.0 2.292 2.035 62 17.0 18:43 (111, 44)
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Now it is 17.3 mag (June 26, Hidetaka Sato). It keeps observable at 17 mag for a long time from 2011 to 2012.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 0 58.08 19 11.6 7.807 8.023 98 17.0 4:57 (180, 36)
July 30 0 55.17 19 12.8 7.688 8.024 105 17.0 4:27 (180, 36)
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Now it is 16.5 mag (July 2, J. F. Hernandez). It was observed around 16 mag in 2009 and 2010. In 2011, it keeps observable at 17 mag from spring to autumn. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 16 53.85 -23 40.0 3.412 4.195 135 17.1 20:50 (180, 79)
July 30 16 52.36 -23 42.7 3.499 4.203 128 17.2 20:21 (180, 79)
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It approached to the sun down to 0.88 A.U. in mid April, and it brightened up to 8.6 mag (Apr. 13, Juan Jose Gonzalez). Now it is fading. It has already faded down to 15.3 mag by CCD observations (July 4, Hidetaka Sato). However, it is still very bright visually as 11.5 mag (July 12, Jakub Cerny). It will get diffuse and fade out rapidly after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 2 36.76 16 25.7 1.753 1.829 77 17.4 5:33 (199, 36)
July 30 2 42.92 16 5.3 1.756 1.919 83 17.9 5:29 (194, 38)
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Now it is 17.1 mag (July 6, C. Rinner, F. Kugel). It is observable at 17 mag for a long time from 2011 to 2013. In 2011, it is observable in good condition in summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 16 54.98 3 35.3 5.359 6.028 127 17.4 20:51 (180, 51)
July 30 16 48.78 3 20.7 5.435 6.010 120 17.5 20:17 (180, 52)
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New comet. In the Southern Hemisphere, it is observable at 18 mag in good condition in July. In the Northern Hemisphere, it locates extremely low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 14 21.15 -35 28.2 2.391 2.819 104 17.9 18:39 ( 82, 86)
July 30 14 29.90 -34 8.5 2.448 2.799 99 17.9 18:43 ( 93, 81)
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Now it is 17.8 mag (July 5, L. Tesi, P. Bacci, G. Fagioli). Good condition in the Southern Hemisphere. It will be getting higher also in the Northern Hemisphere. But it will fade out rapidly. It will be fainter than 18 mag in late July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 23 15 37.84 -16 54.3 2.505 3.095 116 17.9 19:35 (180, 72)
July 30 15 38.96 -15 29.3 2.648 3.139 109 18.1 19:08 (180, 70)
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