Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and FY3D Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/12/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (FY3D) Time (FY3D) Lat,Lon (FY3D) SZA (FY3D ) Distance(km) Time Diff (sec)
1 10/21/2025 07:40:16 81.01, 11.23 94.93 10/21/2025 07:41:20 80.96, 15.67 94.36 77.52 64
2 10/21/2025 09:21:43 80.96, -13.12 94.80 10/21/2025 09:22:53 80.93, -11.05 94.51 36.58 70
3 10/21/2025 11:03:09 80.90, -37.12 94.63 10/21/2025 11:04:24 80.91, -37.01 94.59 2.24 75
4 10/21/2025 11:54:02 -81.04, 127.05 84.91 10/21/2025 11:55:03 -80.97, 132.76 85.63 99.43 61
5 10/21/2025 12:44:39 80.90, -62.57 94.66 10/21/2025 12:45:54 80.90, -62.60 94.63 0.52 75
6 10/21/2025 13:35:28 -80.98, 103.07 85.09 10/21/2025 13:36:36 -80.94, 106.05 85.49 52.22 68
7 10/21/2025 14:26:09 80.91, -88.02 94.70 10/21/2025 14:27:24 80.90, -88.19 94.68 3.25 75
8 10/21/2025 15:16:54 -80.92, 79.07 85.26 10/21/2025 15:18:09 -80.90, 79.35 85.34 5.16 75
9 10/21/2025 16:07:39 80.91,-113.47 94.73 10/21/2025 16:08:53 80.90,-113.41 94.69 1.56 74
10 10/21/2025 16:58:23 -80.91, 53.98 85.28 10/21/2025 16:59:38 -80.91, 54.12 85.33 2.58 75
11 10/21/2025 17:49:08 80.90,-138.56 94.72 10/21/2025 17:50:22 80.91,-138.64 94.70 1.54 74
12 10/21/2025 18:39:53 -80.91, 28.53 85.24 10/21/2025 18:41:08 -80.90, 28.53 85.28 0.83 75
13 10/21/2025 19:30:38 80.90,-164.01 94.75 10/21/2025 19:31:51 80.91,-163.86 94.71 2.88 73
14 10/21/2025 20:21:22 -80.90, 3.44 85.26 10/21/2025 20:22:37 -80.91, 3.31 85.27 2.53 75
15 10/21/2025 21:12:08 80.91, 170.54 94.79 10/21/2025 21:13:21 80.90, 170.55 94.75 0.32 73
16 10/21/2025 22:02:52 -80.90, -22.01 85.22 10/21/2025 22:04:06 -80.91, -21.91 85.26 2.18 74
17 10/21/2025 22:53:38 80.91, 145.09 94.82 10/21/2025 22:54:51 80.90, 144.96 94.80 2.64 73
18 10/21/2025 23:44:22 -80.90, -47.46 85.19 10/21/2025 23:45:36 -80.90, -47.50 85.22 0.74 74
19 10/22/2025 00:35:08 80.91, 119.64 94.86 10/22/2025 00:36:20 80.90, 119.74 94.81 2.17 72
20 10/22/2025 01:25:52 -80.91, -72.91 85.15 10/22/2025 01:27:05 -80.91, -72.72 85.21 3.28 73
21 10/22/2025 02:16:37 80.90, 94.55 94.84 10/22/2025 02:17:49 80.91, 94.51 94.82 0.92 72
22 10/22/2025 03:07:22 -80.91, -98.36 85.12 10/22/2025 03:08:35 -80.90, -98.31 85.16 1.20 73
23 10/22/2025 03:58:07 80.90, 69.10 94.88 10/22/2025 03:59:19 80.90, 68.92 94.86 3.08 72
24 10/22/2025 04:48:51 -80.90,-123.45 85.14 10/22/2025 04:50:04 -80.91,-123.54 85.15 1.89 73
25 10/22/2025 05:39:36 80.91, 43.65 94.91 10/22/2025 05:40:47 80.90, 43.70 94.87 1.02 71
26 10/22/2025 06:30:20 -80.90,-148.90 85.10 10/22/2025 06:31:32 -80.91,-148.76 85.14 2.74 72
27 10/22/2025 07:21:06 80.91, 18.19 94.95 10/22/2025 07:22:17 80.90, 18.11 94.92 2.12 71
28 10/22/2025 08:11:50 -80.90,-174.35 85.06 10/22/2025 08:13:02 -80.90,-174.35 85.10 0.06 72
29 10/22/2025 09:02:36 80.91, -7.26 94.99 10/22/2025 09:03:46 80.90, -7.11 94.93 2.86 70
30 10/22/2025 09:53:20 -80.91, 160.20 85.03 10/22/2025 09:54:32 -80.90, 160.06 85.05 2.73 72
31 10/22/2025 10:44:05 80.90, -32.35 94.97 10/22/2025 10:45:15 80.91, -32.34 94.94 0.64 70
32 10/22/2025 11:34:50 -80.91, 134.75 84.99 10/22/2025 11:36:01 -80.90, 134.84 85.04 1.79 71
33 10/22/2025 12:25:35 80.90, -57.80 95.00 10/22/2025 12:26:45 80.90, -57.93 94.98 2.38 70
34 10/22/2025 13:16:19 -80.90, 109.66 85.01 10/22/2025 13:17:30 -80.91, 109.62 85.03 1.31 71
35 10/22/2025 14:07:05 80.91, -83.25 95.04 10/22/2025 14:08:14 80.90, -83.15 94.99 1.76 69
36 10/22/2025 14:57:49 -80.90, 84.21 84.98 10/22/2025 14:59:00 -80.90, 84.03 84.99 3.31 71
37 10/22/2025 15:48:34 80.89,-108.34 95.02 10/22/2025 15:49:43 80.91,-108.37 95.00 1.68 69
38 10/22/2025 16:39:19 -80.90, 58.76 84.94 10/22/2025 16:40:29 -80.90, 58.80 84.98 0.68 70
39 10/22/2025 17:30:04 80.90,-133.79 95.06 10/22/2025 17:31:13 80.90,-133.97 95.05 3.14 69
40 10/22/2025 18:20:49 -80.91, 33.31 84.90 10/22/2025 18:21:59 -80.90, 33.21 84.93 2.15 70
41 10/22/2025 19:11:34 80.90,-159.24 95.09 10/22/2025 19:12:42 80.91,-159.19 95.06 1.03 68
42 10/22/2025 20:02:19 -80.91, 7.86 84.87 10/22/2025 20:03:28 -80.90, 7.99 84.92 2.44 69
43 10/22/2025 20:53:04 80.91, 175.31 95.13 10/22/2025 20:54:12 80.90, 175.22 95.10 1.72 68
44 10/22/2025 21:43:48 -80.90, -17.23 84.89 10/22/2025 21:44:57 -80.91, -17.23 84.91 0.93 69
45 10/22/2025 22:34:34 80.91, 149.86 95.16 10/22/2025 22:35:41 80.90, 150.00 95.11 2.50 67
46 10/22/2025 23:25:18 -80.90, -42.68 84.85 10/22/2025 23:26:27 -80.90, -42.82 84.87 2.62 69
47 10/23/2025 00:16:03 80.90, 124.77 95.15 10/23/2025 00:17:10 80.91, 124.77 95.12 1.43 67
48 10/23/2025 01:06:48 -80.91, -68.13 84.82 10/23/2025 01:07:56 -80.90, -68.05 84.86 1.38 68
49 10/23/2025 01:57:33 80.90, 99.32 95.18 10/23/2025 01:58:40 80.90, 99.18 95.17 2.39 67
50 10/23/2025 02:48:18 -80.91, -93.58 84.78 10/23/2025 02:49:26 -80.90, -93.64 84.81 1.69 68
51 10/23/2025 03:39:03 80.90, 73.87 95.22 10/23/2025 03:40:09 80.91, 73.96 95.18 1.67 66
52 10/23/2025 04:29:48 -80.91,-119.03 84.75 10/23/2025 04:30:55 -80.90,-118.86 84.80 3.12 67
53 10/23/2025 05:20:33 80.91, 48.41 95.25 10/23/2025 05:21:39 80.90, 48.37 95.22 1.17 66
54 10/23/2025 06:11:17 -80.90,-144.12 84.76 10/23/2025 06:12:24 -80.91,-144.08 84.79 0.99 67
55 10/23/2025 07:02:03 80.91, 22.96 95.29 10/23/2025 07:03:08 80.90, 23.14 95.23 3.24 65
56 10/23/2025 07:52:47 -80.90,-169.57 84.73 10/23/2025 07:53:54 -80.90,-169.68 84.75 1.95 67
57 10/23/2025 08:43:32 80.90, -2.13 95.27 10/23/2025 08:44:37 80.91, -2.08 95.24 1.54 65
58 10/23/2025 09:34:17 -80.91, 164.98 84.69 10/23/2025 09:35:23 -80.90, 165.10 84.74 2.09 66
59 10/23/2025 10:25:02 80.90, -27.58 95.31 10/23/2025 10:26:07 80.90, -27.67 95.29 1.65 65
60 10/23/2025 11:15:47 -80.91, 139.53 84.66 10/23/2025 11:16:53 -80.90, 139.51 84.69 1.45 66
61 10/23/2025 12:06:32 80.90, -53.03 95.34 10/23/2025 12:07:36 80.91, -52.90 95.30 2.38 64
62 10/23/2025 12:57:16 -80.90, 114.44 84.67 10/23/2025 12:58:22 -80.90, 114.29 84.68 2.80 66
63 10/23/2025 13:48:02 80.91, -78.48 95.38 10/23/2025 13:49:06 80.90, -78.49 95.34 0.96 64
64 10/23/2025 14:38:46 -80.90, 88.99 84.64 10/23/2025 14:39:51 -80.91, 89.06 84.67 1.44 65
65 10/23/2025 15:29:31 80.89,-103.57 95.36 10/23/2025 15:30:35 80.90,-103.71 95.35 2.66 64
66 10/23/2025 16:20:16 -80.90, 63.54 84.60 10/23/2025 16:21:21 -80.90, 63.47 84.63 1.31 65
67 10/23/2025 17:11:01 80.90,-129.02 95.40 10/23/2025 17:12:04 80.91,-128.93 95.36 1.94 63
68 10/23/2025 18:01:46 -80.91, 38.09 84.57 10/23/2025 18:02:50 -80.90, 38.25 84.62 2.79 64
69 10/23/2025 18:52:31 80.90,-154.47 95.43 10/23/2025 18:53:34 80.90,-154.53 95.41 0.92 63
70 10/23/2025 19:43:16 -80.91, 12.64 84.53 10/23/2025 19:44:20 -80.90, 12.66 84.57 1.54 64
71 10/23/2025 20:34:01 80.91,-179.93 95.47 10/23/2025 20:35:03 80.91,-179.75 95.42 3.10 62
72 10/23/2025 21:24:45 -80.90, -12.45 84.55 10/23/2025 21:25:49 -80.90, -12.57 84.56 2.10 64
73 10/23/2025 22:15:31 80.91, 154.62 95.50 10/23/2025 22:16:33 80.90, 154.66 95.46 1.27 62
74 10/23/2025 23:06:15 -80.90, -37.90 84.51 10/23/2025 23:07:18 -80.91, -37.79 84.55 2.03 63
75 10/23/2025 23:57:00 80.90, 129.53 95.48 10/23/2025 23:58:02 80.90, 129.43 95.47 1.93 62
76 10/24/2025 00:47:45 -80.91, -63.35 84.48 10/24/2025 00:48:48 -80.90, -63.38 84.51 0.79 63
77 10/24/2025 01:38:30 80.90, 104.08 95.52 10/24/2025 01:39:31 80.91, 104.21 95.48 2.50 61
78 10/24/2025 02:29:14 -80.89, -88.44 84.50 10/24/2025 02:30:17 -80.90, -88.61 84.50 3.19 63
79 10/24/2025 03:20:00 80.90, 78.63 95.56 10/24/2025 03:21:01 80.90, 78.62 95.53 0.27 61
80 10/24/2025 04:10:44 -80.90,-113.89 84.46 10/24/2025 04:11:46 -80.91,-113.83 84.49 1.89 62
81 10/24/2025 05:01:30 80.91, 53.18 95.59 10/24/2025 05:02:31 80.89, 53.02 95.57 3.00 61
82 10/24/2025 05:52:14 -80.90,-139.34 84.43 10/24/2025 05:53:16 -80.90,-139.42 84.44 1.40 62
83 10/24/2025 06:43:00 80.91, 27.72 95.63 10/24/2025 06:44:00 80.90, 27.80 95.58 1.85 60
84 10/24/2025 07:33:44 -80.90,-164.79 84.39 10/24/2025 07:34:45 -80.91,-164.64 84.43 2.67 61
85 10/24/2025 08:24:29 80.90, 2.63 95.61 10/24/2025 08:25:29 80.90, 2.58 95.59 1.22 60
86 10/24/2025 09:15:13 -80.91, 169.75 84.36 10/24/2025 09:16:14 -80.90, 169.76 84.39 0.74 61
87 10/24/2025 10:05:58 80.90, -22.82 95.64 10/24/2025 10:06:57 80.91, -22.65 95.60 3.14 59
88 10/24/2025 10:56:42 -80.89, 144.66 84.37 10/24/2025 10:57:43 -80.90, 144.54 84.38 2.52 61
89 10/24/2025 11:47:28 80.90, -48.27 95.68 10/24/2025 11:48:27 80.90, -48.24 95.65 0.65 59
90 10/24/2025 12:38:12 -80.90, 119.21 84.34 10/24/2025 12:39:12 -80.91, 119.32 84.37 2.28 60
91 10/24/2025 13:28:57 80.89, -73.36 95.66 10/24/2025 13:29:56 80.91, -73.46 95.66 2.42 59
92 10/24/2025 14:19:42 -80.90, 93.76 84.30 10/24/2025 14:20:42 -80.90, 93.72 84.33 0.70 60
93 10/24/2025 15:10:28 80.91, -99.18 95.75 10/24/2025 15:11:26 80.90, -99.06 95.70 2.53 58
94 10/24/2025 16:01:12 -80.90, 68.31 84.27 10/24/2025 16:02:12 -80.90, 68.13 84.28 3.30 60
95 10/24/2025 16:51:57 80.90,-124.27 95.73 10/24/2025 16:52:55 80.90,-124.28 95.71 0.60 58
96 10/24/2025 17:42:42 -80.91, 42.86 84.23 10/24/2025 17:43:41 -80.90, 42.91 84.27 1.20 59
97 10/24/2025 18:33:27 80.90,-149.72 95.77 10/24/2025 18:34:25 80.90,-149.87 95.76 2.82 58
98 10/24/2025 19:24:11 -80.89, 17.77 84.25 10/24/2025 19:25:10 -80.90, 17.68 84.26 1.87 59
99 10/24/2025 20:14:57 80.91,-175.17 95.80 10/24/2025 20:15:54 80.90,-175.10 95.77 1.38 57
100 10/24/2025 21:05:41 -80.90, -7.68 84.21 10/24/2025 21:06:39 -80.91, -7.54 84.25 2.78 58
101 10/24/2025 21:56:26 80.89, 159.74 95.79 10/24/2025 21:57:23 80.91, 159.68 95.78 1.80 57
102 10/24/2025 22:47:11 -80.90, -33.13 84.18 10/24/2025 22:48:09 -80.90, -33.13 84.21 0.05 58
103 10/24/2025 23:37:57 80.91, 133.92 95.88 10/24/2025 23:38:53 80.90, 134.08 95.82 3.24 56
104 10/25/2025 00:28:41 -80.91, -58.58 84.14 10/25/2025 00:29:39 -80.90, -58.73 84.16 2.71 58
105 10/25/2025 01:19:26 80.90, 108.83 95.86 10/25/2025 01:20:22 80.90, 108.86 95.83 0.59 56
106 10/25/2025 02:10:11 -80.91, -84.04 84.11 10/25/2025 02:11:08 -80.90, -83.95 84.15 1.83 57
107 10/25/2025 03:00:56 80.90, 83.38 95.89 10/25/2025 03:01:52 80.90, 83.27 95.87 2.18 56
108 10/25/2025 03:51:40 -80.90,-109.13 84.13 10/25/2025 03:52:37 -80.90,-109.17 84.14 1.26 57
109 10/25/2025 04:42:26 80.91, 57.93 95.93 10/25/2025 04:43:21 80.90, 58.04 95.88 2.13 55
110 10/25/2025 05:33:10 -80.90,-134.58 84.09 10/25/2025 05:34:07 -80.90,-134.77 84.10 3.30 57
111 10/25/2025 06:23:55 80.89, 32.84 95.91 10/25/2025 06:24:50 80.91, 32.82 95.89 1.30 55
112 10/25/2025 07:14:40 -80.90,-160.03 84.06 10/25/2025 07:15:36 -80.90,-159.99 84.09 0.70 56
113 10/25/2025 08:05:25 80.90, 7.38 95.95 10/25/2025 08:06:20 80.90, 7.22 95.94 2.82 55
114 10/25/2025 08:56:10 -80.91, 174.52 84.02 10/25/2025 08:57:06 -80.89, 174.42 84.04 2.20 56
115 10/25/2025 09:46:55 80.90, -18.07 95.98 10/25/2025 09:47:49 80.90, -18.00 95.95 1.21 54
116 10/25/2025 10:37:40 -80.91, 149.07 83.99 10/25/2025 10:38:35 -80.90, 149.19 84.03 2.50 55
117 10/25/2025 11:28:25 80.91, -43.52 96.02 10/25/2025 11:29:19 80.90, -43.59 95.99 1.64 54
118 10/25/2025 12:19:09 -80.90, 123.97 84.00 10/25/2025 12:20:04 -80.90, 123.97 84.02 0.81 55
119 10/25/2025 13:09:55 80.91, -68.97 96.05 10/25/2025 13:10:48 80.90, -68.82 96.00 2.88 53
120 10/25/2025 14:00:39 -80.90, 98.52 83.97 10/25/2025 14:01:34 -80.90, 98.37 83.98 2.64 55
121 10/25/2025 14:51:24 80.90, -94.07 96.03 10/25/2025 14:52:17 80.91, -94.04 96.01 1.13 53
122 10/25/2025 15:42:09 -80.90, 73.07 83.93 10/25/2025 15:43:03 -80.90, 73.15 83.97 1.40 54
123 10/25/2025 16:32:54 80.90,-119.52 96.07 10/25/2025 16:33:47 80.90,-119.64 96.06 2.09 53
124 10/25/2025 17:23:39 -80.91, 47.62 83.90 10/25/2025 17:24:33 -80.89, 47.56 83.93 1.83 54
125 10/25/2025 18:14:24 80.90,-144.97 96.10 10/25/2025 18:15:16 80.90,-144.86 96.07 1.92 52
126 10/25/2025 19:05:09 -80.91, 22.17 83.86 10/25/2025 19:06:02 -80.90, 22.33 83.92 3.18 53
127 10/25/2025 19:55:54 80.91,-170.42 96.14 10/25/2025 19:56:46 80.90,-170.46 96.11 1.35 52
128 10/25/2025 20:46:38 -80.90, -2.92 83.88 10/25/2025 20:47:31 -80.90, -2.89 83.91 0.83 53
129 10/25/2025 21:37:23 80.89, 164.48 96.12 10/25/2025 21:38:15 80.90, 164.32 96.12 2.99 52
130 10/25/2025 22:28:08 -80.90, -28.38 83.85 10/25/2025 22:29:01 -80.90, -28.49 83.86 2.02 53
131 10/25/2025 23:18:53 80.90, 139.03 96.16 10/25/2025 23:19:44 80.90, 139.09 96.13 1.41 51
132 10/26/2025 00:09:38 -80.91, -53.83 83.81 10/26/2025 00:10:30 -80.90, -53.71 83.85 2.09 52
133 10/26/2025 01:00:23 80.90, 113.58 96.19 10/26/2025 01:01:14 80.90, 113.50 96.18 1.41 51
134 10/26/2025 01:51:07 -80.89, -78.92 83.83 10/26/2025 01:51:59 -80.91, -78.94 83.84 1.55 52
135 10/26/2025 02:41:53 80.90, 88.13 96.23 10/26/2025 02:42:43 80.90, 88.28 96.19 2.66 50
136 10/26/2025 03:32:37 -80.90,-104.37 83.79 10/26/2025 03:33:29 -80.90,-104.53 83.80 2.79 52
137 10/26/2025 04:23:23 80.91, 62.67 96.26 10/26/2025 04:24:13 80.90, 62.68 96.23 1.46 50
138 10/26/2025 05:14:07 -80.90,-129.82 83.76 10/26/2025 05:14:58 -80.90,-129.75 83.79 1.29 51
139 10/26/2025 06:04:52 80.90, 37.58 96.25 10/26/2025 06:05:42 80.90, 37.46 96.24 2.23 50
140 10/26/2025 06:55:37 -80.90,-155.27 83.72 10/26/2025 06:56:28 -80.90,-155.35 83.74 1.47 51
141 10/26/2025 07:46:22 80.90, 12.13 96.28 10/26/2025 07:47:11 80.90, 12.23 96.25 1.95 49
142 10/26/2025 08:37:07 -80.91, 179.27 83.69 10/26/2025 08:37:57 -80.90, 179.43 83.73 2.79 50
143 10/26/2025 09:27:52 80.90, -13.33 96.32 10/26/2025 09:28:41 80.90, -13.36 96.29 0.85 49
144 10/26/2025 10:18:36 -80.89, 154.18 83.71 10/26/2025 10:19:26 -80.91, 154.20 83.72 1.39 50
145 10/26/2025 11:09:21 80.89, -38.42 96.30 10/26/2025 11:10:10 80.90, -38.59 96.30 3.29 49
146 10/26/2025 12:00:06 -80.90, 128.73 83.67 10/26/2025 12:00:56 -80.90, 128.61 83.68 2.11 50
147 10/26/2025 12:50:50 80.89, -63.87 96.33 10/26/2025 12:51:38 80.91, -63.81 96.31 1.83 48
148 10/26/2025 13:41:35 -80.90, 103.28 83.64 10/26/2025 13:42:24 -80.90, 103.38 83.67 1.90 49
149 10/26/2025 14:32:20 80.90, -89.33 96.37 10/26/2025 14:33:08 80.90, -89.41 96.36 1.48 48
150 10/26/2025 15:23:05 -80.90, 77.82 83.60 10/26/2025 15:23:54 -80.90, 77.79 83.63 1.12 49
151 10/26/2025 16:13:50 80.90,-114.78 96.40 10/26/2025 16:14:37 80.90,-114.63 96.37 2.60 47
152 10/26/2025 17:04:34 -80.89, 52.73 83.62 10/26/2025 17:05:23 -80.90, 52.57 83.62 3.11 49
153 10/26/2025 17:55:20 80.90,-140.23 96.44 10/26/2025 17:56:07 80.90,-140.23 96.41 0.80 47
154 10/26/2025 18:46:04 -80.89, 27.28 83.58 10/26/2025 18:46:52 -80.90, 27.34 83.61 1.54 48
155 10/26/2025 19:36:49 80.89,-165.33 96.42 10/26/2025 19:37:36 80.90,-165.45 96.42 2.54 47
156 10/26/2025 20:27:34 -80.90, 1.83 83.55 10/26/2025 20:28:22 -80.90, 1.75 83.56 1.44 48

Figure of NOAA-21 and FY3D satellite orbits during SNOs since TLE Epoch: 10/12/2025
SNOs_Map_NOAA-21_FY3D_20251013.jpg

Download SNOs between NOAA-21 and FY3D since TLE EPOCH: 10/12/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and FY3D