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: 7/1/2023
| 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 | 07/01/2023 | 00:59:33 | 81.18, 106.60 | 62.60 | 07/01/2023 | 00:59:40 | 81.18, 106.52 | 62.61 | 1.33 | 7 |
| 2 | 07/01/2023 | 01:50:18 | -81.18, -86.08 | 117.40 | 07/01/2023 | 01:50:26 | -81.18, -86.27 | 117.38 | 3.21 | 8 |
| 3 | 07/01/2023 | 02:41:03 | 81.18, 81.17 | 62.61 | 07/01/2023 | 02:41:11 | 81.18, 81.33 | 62.59 | 2.67 | 8 |
| 4 | 07/01/2023 | 03:31:48 | -81.18,-111.51 | 117.39 | 07/01/2023 | 03:31:57 | -81.18,-111.46 | 117.40 | 0.75 | 9 |
| 5 | 07/01/2023 | 04:22:33 | 81.19, 55.74 | 62.63 | 07/01/2023 | 04:22:43 | 81.18, 55.75 | 62.62 | 0.17 | 10 |
| 6 | 07/01/2023 | 05:13:18 | -81.18,-136.93 | 117.38 | 07/01/2023 | 05:13:29 | -81.18,-137.04 | 117.37 | 1.90 | 11 |
| 7 | 07/01/2023 | 06:04:03 | 81.19, 30.32 | 62.64 | 07/01/2023 | 06:04:15 | 81.18, 30.16 | 62.65 | 2.62 | 12 |
| 8 | 07/01/2023 | 06:54:48 | -81.19,-162.36 | 117.37 | 07/01/2023 | 06:55:00 | -81.18,-162.24 | 117.39 | 2.08 | 12 |
| 9 | 07/01/2023 | 07:45:33 | 81.19, 4.89 | 62.65 | 07/01/2023 | 07:45:46 | 81.18, 4.97 | 62.63 | 1.47 | 13 |
| 10 | 07/01/2023 | 08:36:18 | -81.19, 172.21 | 117.35 | 07/01/2023 | 08:36:32 | -81.18, 172.18 | 117.36 | 0.74 | 14 |
| 11 | 07/01/2023 | 09:27:02 | 81.18, -20.16 | 62.61 | 07/01/2023 | 09:27:17 | 81.18, -20.22 | 62.61 | 1.27 | 15 |
| 12 | 07/01/2023 | 10:17:47 | -81.18, 147.17 | 117.40 | 07/01/2023 | 10:18:03 | -81.18, 146.98 | 117.38 | 3.16 | 16 |
| 13 | 07/01/2023 | 11:08:33 | 81.19, -45.97 | 62.68 | 07/01/2023 | 11:08:49 | 81.18, -45.81 | 62.64 | 2.86 | 16 |
| 14 | 07/01/2023 | 11:59:17 | -81.18, 121.74 | 117.38 | 07/01/2023 | 11:59:34 | -81.18, 121.79 | 117.40 | 0.94 | 17 |
| 15 | 07/01/2023 | 12:50:02 | 81.18, -71.01 | 62.63 | 07/01/2023 | 12:50:20 | 81.18, -71.00 | 62.62 | 0.29 | 18 |
| 16 | 07/01/2023 | 13:40:47 | -81.18, 96.31 | 117.37 | 07/01/2023 | 13:41:06 | -81.18, 96.21 | 117.37 | 1.81 | 19 |
| 17 | 07/01/2023 | 14:31:32 | 81.18, -96.44 | 62.65 | 07/01/2023 | 14:31:52 | 81.18, -96.58 | 62.66 | 2.43 | 20 |
| 18 | 07/01/2023 | 15:22:17 | -81.18, 70.89 | 117.36 | 07/01/2023 | 15:22:37 | -81.18, 71.01 | 117.39 | 2.16 | 20 |
| 19 | 07/01/2023 | 16:13:02 | 81.18,-121.87 | 62.66 | 07/01/2023 | 16:13:23 | 81.18,-121.78 | 62.63 | 1.56 | 21 |
| 20 | 07/01/2023 | 17:03:47 | -81.18, 45.46 | 117.34 | 07/01/2023 | 17:04:09 | -81.18, 45.43 | 117.35 | 0.49 | 22 |
| 21 | 07/01/2023 | 17:54:31 | 81.19,-147.29 | 62.67 | 07/01/2023 | 17:54:54 | 81.18,-147.36 | 62.67 | 1.12 | 23 |
| 22 | 07/01/2023 | 18:45:16 | -81.19, 20.03 | 117.33 | 07/01/2023 | 18:45:40 | -81.18, 19.85 | 117.32 | 3.13 | 24 |
| 23 | 07/01/2023 | 19:36:01 | 81.19,-172.72 | 62.69 | 07/01/2023 | 19:36:25 | 81.18,-172.55 | 62.65 | 2.94 | 24 |
| 24 | 07/01/2023 | 20:26:46 | -81.19, -5.39 | 117.32 | 07/01/2023 | 20:27:11 | -81.18, -5.35 | 117.34 | 0.93 | 25 |
| 25 | 07/01/2023 | 21:17:30 | 81.18, 162.23 | 62.64 | 07/01/2023 | 21:17:56 | 81.18, 162.25 | 62.63 | 0.69 | 26 |
| 26 | 07/01/2023 | 22:08:15 | -81.18, -30.44 | 117.36 | 07/01/2023 | 22:08:42 | -81.18, -30.54 | 117.36 | 1.81 | 27 |
| 27 | 07/01/2023 | 22:59:00 | 81.18, 136.80 | 62.66 | 07/01/2023 | 22:59:28 | 81.18, 136.67 | 62.66 | 2.29 | 28 |
| 28 | 07/01/2023 | 23:49:46 | -81.19, -56.25 | 117.29 | 07/01/2023 | 23:50:14 | -81.18, -56.12 | 117.33 | 2.27 | 28 |
| 29 | 07/02/2023 | 00:40:30 | 81.18, 111.38 | 62.67 | 07/02/2023 | 00:40:59 | 81.18, 111.48 | 62.64 | 1.74 | 29 |
| 30 | 07/02/2023 | 01:31:15 | -81.18, -81.29 | 117.33 | 07/02/2023 | 01:31:45 | -81.18, -81.32 | 117.35 | 0.49 | 30 |
| 31 | 07/02/2023 | 02:22:00 | 81.18, 85.95 | 62.68 | 07/02/2023 | 02:22:31 | 81.18, 85.89 | 62.67 | 0.91 | 31 |
| 32 | 07/02/2023 | 03:12:45 | -81.18,-106.72 | 117.32 | 07/02/2023 | 03:13:17 | -81.18,-106.90 | 117.32 | 3.03 | 32 |
| 33 | 07/02/2023 | 04:03:30 | 81.18, 60.52 | 62.70 | 07/02/2023 | 04:04:02 | 81.18, 60.70 | 62.65 | 3.08 | 32 |
| 34 | 07/02/2023 | 04:54:15 | -81.18,-132.15 | 117.31 | 07/02/2023 | 04:54:48 | -81.18,-132.09 | 117.33 | 0.93 | 33 |
| 35 | 07/02/2023 | 05:45:00 | 81.19, 35.09 | 62.71 | 07/02/2023 | 05:45:34 | 81.18, 35.12 | 62.69 | 0.52 | 34 |
| 36 | 07/02/2023 | 06:35:45 | -81.19,-157.58 | 117.29 | 07/02/2023 | 06:36:20 | -81.18,-157.68 | 117.30 | 1.73 | 35 |
| 37 | 07/02/2023 | 07:26:29 | 81.18, 10.05 | 62.67 | 07/02/2023 | 07:27:05 | 81.18, 9.92 | 62.67 | 2.22 | 36 |
| 38 | 07/02/2023 | 08:17:15 | -81.19, 177.00 | 117.28 | 07/02/2023 | 08:17:51 | -81.18, 177.13 | 117.32 | 2.27 | 36 |
| 39 | 07/02/2023 | 09:08:00 | 81.19, -15.76 | 62.74 | 07/02/2023 | 09:08:37 | 81.18, -15.66 | 62.70 | 1.89 | 37 |
| 40 | 07/02/2023 | 09:58:45 | -81.19, 151.57 | 117.27 | 07/02/2023 | 09:59:23 | -81.18, 151.55 | 117.29 | 0.67 | 38 |
| 41 | 07/02/2023 | 10:49:29 | 81.18, -40.81 | 62.69 | 07/02/2023 | 10:50:08 | 81.18, -40.85 | 62.68 | 0.85 | 39 |
| 42 | 07/02/2023 | 11:40:14 | -81.18, 126.52 | 117.31 | 07/02/2023 | 11:40:54 | -81.18, 126.35 | 117.31 | 2.97 | 40 |
| 43 | 07/02/2023 | 12:30:59 | 81.18, -66.24 | 62.71 | 07/02/2023 | 12:31:39 | 81.18, -66.05 | 62.66 | 3.26 | 40 |
| 44 | 07/02/2023 | 13:21:44 | -81.18, 101.10 | 117.30 | 07/02/2023 | 13:22:25 | -81.18, 101.16 | 117.33 | 1.08 | 41 |
| 45 | 07/02/2023 | 14:12:29 | 81.18, -91.67 | 62.72 | 07/02/2023 | 14:13:11 | 81.18, -91.63 | 62.69 | 0.62 | 42 |
| 46 | 07/02/2023 | 15:03:14 | -81.18, 75.67 | 117.28 | 07/02/2023 | 15:03:57 | -81.18, 75.57 | 117.30 | 1.62 | 43 |
| 47 | 07/02/2023 | 15:53:59 | 81.18,-117.09 | 62.73 | 07/02/2023 | 15:54:43 | 81.18,-117.21 | 62.73 | 2.02 | 44 |
| 48 | 07/02/2023 | 16:44:44 | -81.18, 50.24 | 117.27 | 07/02/2023 | 16:45:28 | -81.18, 50.38 | 117.31 | 2.34 | 44 |
| 49 | 07/02/2023 | 17:35:29 | 81.19,-142.52 | 62.75 | 07/02/2023 | 17:36:14 | 81.18,-142.41 | 62.71 | 1.98 | 45 |
| 50 | 07/02/2023 | 18:26:14 | -81.19, 24.81 | 117.26 | 07/02/2023 | 18:27:00 | -81.18, 24.80 | 117.28 | 0.34 | 46 |
| 51 | 07/02/2023 | 19:16:59 | 81.19,-167.95 | 62.76 | 07/02/2023 | 19:17:46 | 81.18,-167.99 | 62.74 | 0.79 | 47 |
| 52 | 07/02/2023 | 20:07:43 | -81.18, -0.23 | 117.30 | 07/02/2023 | 20:08:31 | -81.18, -0.40 | 117.30 | 2.96 | 48 |
| 53 | 07/02/2023 | 20:58:28 | 81.18, 167.00 | 62.72 | 07/02/2023 | 20:59:17 | 81.18, 166.82 | 62.72 | 3.25 | 49 |
| 54 | 07/02/2023 | 21:49:14 | -81.19, -26.04 | 117.23 | 07/02/2023 | 21:50:03 | -81.18, -25.98 | 117.27 | 1.13 | 49 |
| 55 | 07/02/2023 | 22:39:58 | 81.18, 141.57 | 62.73 | 07/02/2023 | 22:40:48 | 81.18, 141.62 | 62.70 | 0.91 | 50 |
| 56 | 07/02/2023 | 23:30:43 | -81.18, -51.09 | 117.27 | 07/02/2023 | 23:31:34 | -81.18, -51.18 | 117.29 | 1.61 | 51 |
| 57 | 07/03/2023 | 00:21:28 | 81.18, 116.15 | 62.75 | 07/03/2023 | 00:22:20 | 81.18, 116.04 | 62.73 | 1.86 | 52 |
| 58 | 07/03/2023 | 01:12:13 | -81.18, -76.51 | 117.26 | 07/03/2023 | 01:13:05 | -81.18, -76.37 | 117.31 | 2.47 | 52 |
| 59 | 07/03/2023 | 02:02:58 | 81.18, 90.72 | 62.76 | 07/03/2023 | 02:03:51 | 81.18, 90.84 | 62.71 | 2.14 | 53 |
| 60 | 07/03/2023 | 02:53:43 | -81.18,-101.94 | 117.24 | 07/03/2023 | 02:54:37 | -81.18,-101.95 | 117.27 | 0.28 | 54 |
| 61 | 07/03/2023 | 03:44:28 | 81.18, 65.29 | 62.78 | 07/03/2023 | 03:45:23 | 81.18, 65.26 | 62.75 | 0.50 | 55 |
| 62 | 07/03/2023 | 04:35:13 | -81.18,-127.37 | 117.23 | 07/03/2023 | 04:36:09 | -81.18,-127.54 | 117.24 | 2.84 | 56 |
| 63 | 07/03/2023 | 05:25:58 | 81.19, 39.86 | 62.79 | 07/03/2023 | 05:26:55 | 81.18, 39.68 | 62.78 | 3.14 | 57 |
| 64 | 07/03/2023 | 06:16:43 | -81.18,-152.80 | 117.22 | 07/03/2023 | 06:17:40 | -81.18,-152.73 | 117.26 | 1.12 | 57 |
| 65 | 07/03/2023 | 07:07:28 | 81.19, 14.43 | 62.80 | 07/03/2023 | 07:08:26 | 81.18, 14.48 | 62.76 | 0.95 | 58 |
| 66 | 07/03/2023 | 07:58:13 | -81.19,-178.23 | 117.20 | 07/03/2023 | 07:59:12 | -81.18,-178.31 | 117.23 | 1.56 | 59 |
| 67 | 07/03/2023 | 08:48:57 | 81.18, -10.61 | 62.76 | 07/03/2023 | 08:49:57 | 81.18, -10.71 | 62.74 | 1.78 | 60 |
| 68 | 07/03/2023 | 09:39:43 | -81.19, 156.35 | 117.19 | 07/03/2023 | 09:40:43 | -81.18, 156.49 | 117.25 | 2.47 | 60 |
| 69 | 07/03/2023 | 10:30:28 | 81.19, -36.42 | 62.83 | 07/03/2023 | 10:31:29 | 81.18, -36.30 | 62.78 | 2.33 | 61 |
| 70 | 07/03/2023 | 11:21:12 | -81.18, 131.30 | 117.23 | 07/03/2023 | 11:22:14 | -81.18, 131.29 | 117.26 | 0.57 | 62 |
| 71 | 07/03/2023 | 12:11:57 | 81.18, -61.47 | 62.79 | 07/03/2023 | 12:13:00 | 81.18, -61.49 | 62.76 | 0.43 | 63 |
| 72 | 07/03/2023 | 13:02:42 | -81.18, 105.87 | 117.22 | 07/03/2023 | 13:03:46 | -81.18, 105.71 | 117.23 | 2.77 | 64 |
| 73 | 07/03/2023 | 13:53:27 | 81.18, -86.90 | 62.80 | 07/03/2023 | 13:54:32 | 81.18, -87.07 | 62.79 | 2.95 | 65 |
| 74 | 07/03/2023 | 14:44:12 | -81.18, 80.44 | 117.20 | 07/03/2023 | 14:45:17 | -81.18, 80.52 | 117.25 | 1.24 | 65 |
| 75 | 07/03/2023 | 15:34:57 | 81.18,-112.33 | 62.82 | 07/03/2023 | 15:36:03 | 81.18,-112.27 | 62.77 | 1.03 | 66 |
| 76 | 07/03/2023 | 16:25:42 | -81.18, 55.02 | 117.19 | 07/03/2023 | 16:26:49 | -81.18, 54.93 | 117.22 | 1.42 | 67 |
| 77 | 07/03/2023 | 17:16:27 | 81.19,-137.76 | 62.83 | 07/03/2023 | 17:17:35 | 81.18,-137.85 | 62.80 | 1.62 | 68 |
| 78 | 07/03/2023 | 18:07:12 | -81.18, 29.59 | 117.18 | 07/03/2023 | 18:08:20 | -81.18, 29.74 | 117.24 | 2.53 | 68 |
| 79 | 07/03/2023 | 18:57:57 | 81.19,-163.19 | 62.85 | 07/03/2023 | 18:59:06 | 81.18,-163.05 | 62.79 | 2.42 | 69 |
| 80 | 07/03/2023 | 19:48:42 | -81.19, 4.16 | 117.16 | 07/03/2023 | 19:49:52 | -81.18, 4.16 | 117.20 | 0.30 | 70 |
| 81 | 07/03/2023 | 20:39:27 | 81.19, 171.39 | 62.86 | 07/03/2023 | 20:40:38 | 81.18, 171.37 | 62.82 | 0.61 | 71 |
| 82 | 07/03/2023 | 21:30:10 | -81.18, -20.89 | 117.20 | 07/03/2023 | 21:31:22 | -81.18, -21.04 | 117.22 | 2.74 | 72 |
| 83 | 07/03/2023 | 22:20:55 | 81.18, 146.34 | 62.82 | 07/03/2023 | 22:22:08 | 81.18, 146.18 | 62.80 | 2.82 | 73 |
| 84 | 07/03/2023 | 23:11:41 | -81.19, -46.69 | 117.13 | 07/03/2023 | 23:12:54 | -81.18, -46.62 | 117.19 | 1.35 | 73 |
| 85 | 07/04/2023 | 00:02:25 | 81.18, 120.91 | 62.83 | 07/04/2023 | 00:03:39 | 81.18, 120.98 | 62.78 | 1.24 | 74 |
| 86 | 07/04/2023 | 00:53:10 | -81.18, -71.74 | 117.18 | 07/04/2023 | 00:54:25 | -81.18, -71.82 | 117.21 | 1.38 | 75 |
Figure of NOAA-21 and FY3D satellite orbits during SNOs since TLE Epoch: 7/1/2023
Download SNOs between NOAA-21 and FY3D since TLE EPOCH: 07/01/2023 in txt file.
Historial Predications of SNOs between NOAA-21 and FY3D