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: 10/11/2025
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, 11.21 94.93 10/21/2025 07:41:20 80.96, 15.65 94.36 77.51 64
2 10/21/2025 09:21:42 80.95, -12.77 94.75 10/21/2025 09:22:53 80.93, -11.06 94.51 30.08 71
3 10/21/2025 11:03:09 80.90, -37.14 94.63 10/21/2025 11:04:24 80.91, -37.03 94.59 2.17 75
4 10/21/2025 11:54:02 -81.04, 127.04 84.91 10/21/2025 11:55:03 -80.97, 132.75 85.63 99.45 61
5 10/21/2025 12:44:39 80.91, -62.59 94.67 10/21/2025 12:45:54 80.90, -62.62 94.63 0.57 75
6 10/21/2025 13:35:28 -80.98, 103.06 85.08 10/21/2025 13:36:36 -80.94, 106.04 85.49 52.24 68
7 10/21/2025 14:26:09 80.91, -88.04 94.70 10/21/2025 14:27:24 80.90, -88.21 94.68 3.31 75
8 10/21/2025 15:16:54 -80.92, 79.06 85.26 10/21/2025 15:18:09 -80.90, 79.34 85.34 5.20 75
9 10/21/2025 16:07:39 80.91,-113.49 94.74 10/21/2025 16:08:53 80.90,-113.43 94.69 1.63 74
10 10/21/2025 16:58:23 -80.91, 53.97 85.28 10/21/2025 16:59:38 -80.91, 54.12 85.33 2.59 75
11 10/21/2025 17:49:08 80.90,-138.58 94.72 10/21/2025 17:50:22 80.91,-138.65 94.70 1.50 74
12 10/21/2025 18:39:53 -80.91, 28.52 85.24 10/21/2025 18:41:08 -80.90, 28.53 85.28 0.88 75
13 10/21/2025 19:30:38 80.90,-164.03 94.76 10/21/2025 19:31:51 80.91,-163.87 94.71 2.83 73
14 10/21/2025 20:21:22 -80.90, 3.43 85.26 10/21/2025 20:22:37 -80.91, 3.30 85.27 2.49 75
15 10/21/2025 21:12:08 80.91, 170.52 94.79 10/21/2025 21:13:21 80.90, 170.54 94.75 0.38 73
16 10/21/2025 22:02:52 -80.90, -22.02 85.22 10/21/2025 22:04:06 -80.91, -21.92 85.26 2.16 74
17 10/21/2025 22:53:38 80.91, 145.07 94.83 10/21/2025 22:54:51 80.90, 144.95 94.80 2.70 73
18 10/21/2025 23:44:22 -80.90, -47.47 85.19 10/21/2025 23:45:36 -80.90, -47.51 85.22 0.72 74
19 10/22/2025 00:35:08 80.91, 119.62 94.86 10/22/2025 00:36:20 80.90, 119.72 94.81 2.21 72
20 10/22/2025 01:25:52 -80.91, -72.92 85.15 10/22/2025 01:27:05 -80.91, -72.73 85.21 3.29 73
21 10/22/2025 02:16:37 80.90, 94.53 94.84 10/22/2025 02:17:49 80.91, 94.50 94.82 0.87 72
22 10/22/2025 03:07:22 -80.91, -98.36 85.12 10/22/2025 03:08:35 -80.90, -98.32 85.16 1.23 73
23 10/22/2025 03:58:07 80.90, 69.08 94.88 10/22/2025 03:59:19 80.90, 68.91 94.86 3.11 72
24 10/22/2025 04:48:51 -80.90,-123.45 85.13 10/22/2025 04:50:04 -80.91,-123.54 85.15 1.86 73
25 10/22/2025 05:39:37 80.91, 43.63 94.92 10/22/2025 05:40:48 80.90, 43.69 94.87 1.03 71
26 10/22/2025 06:30:21 -80.90,-148.90 85.10 10/22/2025 06:31:33 -80.91,-148.76 85.14 2.74 72
27 10/22/2025 07:21:06 80.89, 18.54 94.90 10/22/2025 07:22:17 80.91, 18.47 94.88 2.12 71
28 10/22/2025 08:11:51 -80.90,-174.35 85.06 10/22/2025 08:13:03 -80.90,-174.35 85.10 0.04 72
29 10/22/2025 09:02:37 80.91, -7.27 94.99 10/22/2025 09:03:47 80.90, -7.12 94.93 2.87 70
30 10/22/2025 09:53:21 -80.91, 160.20 85.03 10/22/2025 09:54:33 -80.90, 160.06 85.05 2.72 72
31 10/22/2025 10:44:06 80.90, -32.35 94.97 10/22/2025 10:45:16 80.91, -32.35 94.94 0.57 70
32 10/22/2025 11:34:51 -80.91, 134.75 84.99 10/22/2025 11:36:02 -80.90, 134.84 85.04 1.80 71
33 10/22/2025 12:25:36 80.90, -57.81 95.00 10/22/2025 12:26:46 80.90, -57.94 94.98 2.41 70
34 10/22/2025 13:16:20 -80.90, 109.66 85.01 10/22/2025 13:17:31 -80.91, 109.61 85.03 1.30 71
35 10/22/2025 14:07:05 80.91, -83.26 95.04 10/22/2025 14:08:14 80.90, -83.16 94.99 1.75 69
36 10/22/2025 14:57:49 -80.90, 84.21 84.98 10/22/2025 14:59:00 -80.90, 84.02 84.99 3.30 71
37 10/22/2025 15:48:34 80.89,-108.35 95.02 10/22/2025 15:49:43 80.91,-108.38 95.00 1.64 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 0.69 70
39 10/22/2025 17:30:04 80.90,-133.80 95.06 10/22/2025 17:31:13 80.90,-133.97 95.05 3.15 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 2.14 70
41 10/22/2025 19:11:34 80.90,-159.25 95.09 10/22/2025 19:12:42 80.91,-159.20 95.06 0.99 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 2.45 69
43 10/22/2025 20:53:04 80.91, 175.30 95.13 10/22/2025 20:54:12 80.90, 175.21 95.10 1.75 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 0.94 69
45 10/22/2025 22:34:34 80.91, 149.85 95.16 10/22/2025 22:35:41 80.90, 149.99 95.11 2.49 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 2.61 69
47 10/23/2025 00:16:03 80.90, 124.76 95.15 10/23/2025 00:17:10 80.91, 124.77 95.12 1.40 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 1.39 68
49 10/23/2025 01:57:33 80.90, 99.31 95.18 10/23/2025 01:58:40 80.90, 99.18 95.17 2.41 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 1.66 68
51 10/23/2025 03:39:03 80.90, 73.86 95.22 10/23/2025 03:40:09 80.91, 73.95 95.18 1.65 66
52 10/23/2025 04:29:48 -80.91,-119.02 84.75 10/23/2025 04:30:55 -80.90,-118.86 84.80 3.11 67
53 10/23/2025 05:20:33 80.91, 48.41 95.25 10/23/2025 05:21:39 80.90, 48.36 95.22 1.20 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 1.03 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 3.22 65
56 10/23/2025 07:52:47 -80.90,-169.56 84.73 10/23/2025 07:53:54 -80.90,-169.67 84.75 1.93 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 1.52 65
58 10/23/2025 09:34:17 -80.91, 164.99 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, -27.68 95.29 1.68 65
60 10/23/2025 11:15:47 -80.91, 139.54 84.66 10/23/2025 11:16:53 -80.90, 139.51 84.69 1.40 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 2.35 64
62 10/23/2025 12:57:16 -80.90, 114.45 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 0.95 64
64 10/23/2025 14:38:46 -80.90, 89.00 84.64 10/23/2025 14:39:51 -80.91, 89.07 84.67 1.48 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 2.69 64
66 10/23/2025 16:20:16 -80.90, 63.55 84.60 10/23/2025 16:21:21 -80.90, 63.48 84.63 1.28 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 1.93 63
68 10/23/2025 18:01:46 -80.91, 38.10 84.57 10/23/2025 18:02:50 -80.90, 38.25 84.62 2.78 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 0.94 63
70 10/23/2025 19:43:16 -80.91, 12.65 84.53 10/23/2025 19:44:20 -80.90, 12.66 84.57 1.47 64
71 10/23/2025 20:34:01 80.91,-179.92 95.47 10/23/2025 20:35:03 80.91,-179.75 95.42 3.07 62
72 10/23/2025 21:24:45 -80.90, -12.44 84.55 10/23/2025 21:25:49 -80.90, -12.56 84.56 2.11 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 1.22 62
74 10/23/2025 23:06:15 -80.90, -37.89 84.52 10/23/2025 23:07:18 -80.91, -37.78 84.55 2.06 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 1.98 62
76 10/24/2025 00:47:45 -80.90, -63.34 84.48 10/24/2025 00:48:48 -80.90, -63.37 84.51 0.73 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 2.49 61
78 10/24/2025 02:29:14 -80.89, -88.44 84.50 10/24/2025 02:30:17 -80.90, -88.60 84.50 3.23 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 0.26 61
80 10/24/2025 04:10:45 -80.91,-114.24 84.41 10/24/2025 04:11:47 -80.90,-114.19 84.46 1.83 62
81 10/24/2025 05:01:30 80.91, 53.18 95.59 10/24/2025 05:02:31 80.90, 53.03 95.57 3.00 61
82 10/24/2025 05:52:14 -80.90,-139.33 84.43 10/24/2025 05:53:16 -80.90,-139.41 84.45 1.43 62
83 10/24/2025 06:43:00 80.91, 27.73 95.63 10/24/2025 06:44:00 80.90, 27.80 95.58 1.79 60
84 10/24/2025 07:33:44 -80.90,-164.78 84.39 10/24/2025 07:34:45 -80.91,-164.63 84.44 2.69 61
85 10/24/2025 08:24:29 80.90, 2.64 95.61 10/24/2025 08:25:29 80.90, 2.58 95.59 1.29 60
86 10/24/2025 09:15:14 -80.91, 169.77 84.36 10/24/2025 09:16:15 -80.90, 169.77 84.39 0.62 61
87 10/24/2025 10:05:59 80.90, -22.81 95.64 10/24/2025 10:06:58 80.91, -22.64 95.60 3.13 59
88 10/24/2025 10:56:43 -80.89, 144.67 84.38 10/24/2025 10:57:44 -80.90, 144.55 84.38 2.58 61
89 10/24/2025 11:47:29 80.90, -48.26 95.68 10/24/2025 11:48:28 80.90, -48.24 95.65 0.59 59
90 10/24/2025 12:38:14 -80.91, 118.87 84.29 10/24/2025 12:39:14 -80.90, 118.96 84.34 2.35 60
91 10/24/2025 13:28:59 80.91, -73.72 95.71 10/24/2025 13:29:58 80.89, -73.83 95.69 2.46 59
92 10/24/2025 14:19:43 -80.90, 93.77 84.30 10/24/2025 14:20:43 -80.90, 93.74 84.33 0.75 60
93 10/24/2025 15:10:29 80.91, -99.17 95.75 10/24/2025 15:11:27 80.90, -99.05 95.70 2.45 58
94 10/24/2025 16:01:13 -80.90, 68.32 84.27 10/24/2025 16:02:13 -80.90, 68.14 84.28 3.26 60
95 10/24/2025 16:51:57 80.90,-124.26 95.73 10/24/2025 16:52:55 80.90,-124.27 95.71 0.70 58
96 10/24/2025 17:42:42 -80.91, 42.87 84.23 10/24/2025 17:43:41 -80.90, 42.92 84.27 1.10 59
97 10/24/2025 18:33:27 80.90,-149.71 95.77 10/24/2025 18:34:25 80.90,-149.87 95.75 2.83 58
98 10/24/2025 19:24:11 -80.89, 17.78 84.25 10/24/2025 19:25:10 -80.90, 17.70 84.26 1.96 59
99 10/24/2025 20:14:57 80.91,-175.16 95.80 10/24/2025 20:15:54 80.90,-175.09 95.76 1.31 57
100 10/24/2025 21:05:41 -80.90, -7.67 84.22 10/24/2025 21:06:39 -80.91, -7.53 84.25 2.84 58
101 10/24/2025 21:56:26 80.89, 159.75 95.79 10/24/2025 21:57:23 80.91, 159.69 95.77 1.90 57
102 10/24/2025 22:47:11 -80.90, -33.12 84.18 10/24/2025 22:48:09 -80.90, -33.12 84.21 0.21 58
103 10/24/2025 23:37:57 80.91, 133.94 95.87 10/24/2025 23:38:53 80.90, 134.09 95.82 3.16 56
104 10/25/2025 00:28:41 -80.90, -58.57 84.15 10/25/2025 00:29:39 -80.90, -58.71 84.16 2.66 58
105 10/25/2025 01:19:26 80.90, 108.84 95.86 10/25/2025 01:20:22 80.90, 108.87 95.83 0.65 56
106 10/25/2025 02:10:11 -80.91, -84.02 84.11 10/25/2025 02:11:08 -80.90, -83.93 84.15 1.74 57
107 10/25/2025 03:00:56 80.90, 83.39 95.89 10/25/2025 03:01:52 80.90, 83.28 95.87 2.17 56
108 10/25/2025 03:51:40 -80.89,-109.11 84.13 10/25/2025 03:52:37 -80.90,-109.16 84.14 1.40 57
109 10/25/2025 04:42:26 80.91, 57.94 95.93 10/25/2025 04:43:21 80.90, 58.05 95.88 2.05 55
110 10/25/2025 05:33:10 -80.90,-134.56 84.09 10/25/2025 05:34:07 -80.90,-134.75 84.10 3.30 57
111 10/25/2025 06:23:55 80.89, 32.85 95.91 10/25/2025 06:24:50 80.91, 32.83 95.89 1.44 55
112 10/25/2025 07:14:40 -80.90,-160.01 84.06 10/25/2025 07:15:36 -80.90,-159.97 84.09 0.69 56
113 10/25/2025 08:05:25 80.90, 7.40 95.94 10/25/2025 08:06:20 80.90, 7.24 95.94 2.86 55
114 10/25/2025 08:56:10 -80.91, 174.54 84.02 10/25/2025 08:57:06 -80.90, 174.43 84.05 2.11 56
115 10/25/2025 09:46:55 80.90, -18.05 95.98 10/25/2025 09:47:49 80.90, -17.99 95.95 1.20 54
116 10/25/2025 10:37:40 -80.91, 149.09 83.99 10/25/2025 10:38:35 -80.90, 149.21 84.04 2.40 55
117 10/25/2025 11:28:25 80.90, -43.51 96.01 10/25/2025 11:29:19 80.90, -43.58 95.99 1.59 54
118 10/25/2025 12:19:09 -80.90, 123.99 84.01 10/25/2025 12:20:04 -80.90, 123.99 84.03 1.01 55
119 10/25/2025 13:09:55 80.91, -68.96 96.05 10/25/2025 13:10:48 80.90, -68.80 96.00 2.80 53
120 10/25/2025 14:00:39 -80.90, 98.54 83.97 10/25/2025 14:01:34 -80.90, 98.39 83.98 2.63 55
121 10/25/2025 14:51:24 80.89, -94.05 96.03 10/25/2025 14:52:17 80.91, -94.03 96.01 1.27 53
122 10/25/2025 15:42:09 -80.90, 73.09 83.94 10/25/2025 15:43:03 -80.90, 73.17 83.97 1.36 54
123 10/25/2025 16:32:54 80.90,-119.50 96.07 10/25/2025 16:33:47 80.90,-119.62 96.06 2.13 53
124 10/25/2025 17:23:39 -80.91, 47.64 83.90 10/25/2025 17:24:33 -80.90, 47.58 83.93 1.68 54
125 10/25/2025 18:14:24 80.90,-144.95 96.10 10/25/2025 18:15:16 80.90,-144.85 96.07 1.89 52
126 10/25/2025 19:05:09 -80.91, 22.19 83.87 10/25/2025 19:06:02 -80.90, 22.35 83.92 3.08 53
127 10/25/2025 19:55:54 80.91,-170.41 96.14 10/25/2025 19:56:46 80.90,-170.44 96.11 1.21 52
128 10/25/2025 20:46:38 -80.90, -2.90 83.88 10/25/2025 20:47:31 -80.90, -2.87 83.91 1.00 53

Figure of NOAA-21 and FY3D satellite orbits during SNOs since TLE Epoch: 10/11/2025
SNOs_Map_NOAA-21_FY3D_20251012.jpg

Download SNOs between NOAA-21 and FY3D since TLE EPOCH: 10/11/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and FY3D