Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and METOP-B Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/23/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (METOP-B) | Time (METOP-B) | Lat,Lon (METOP-B) | SZA (METOP-B ) | Distance(km) | Time Diff (sec) |
| 1 | 11/29/2025 | 23:10:23 | -75.10, -1.34 | 83.10 | 11/29/2025 | 23:11:29 | -75.02, 1.77 | 83.31 | 89.59 | 66 |
| 2 | 11/30/2025 | 00:01:05 | 74.93, 166.45 | 96.73 | 11/30/2025 | 00:02:13 | 74.87, 168.68 | 96.57 | 65.03 | 68 |
| 3 | 11/30/2025 | 00:51:46 | -74.76, -25.76 | 83.46 | 11/30/2025 | 00:52:57 | -74.73, -24.37 | 83.56 | 40.71 | 71 |
| 4 | 11/30/2025 | 01:42:29 | 74.64, 141.88 | 96.42 | 11/30/2025 | 01:43:41 | 74.58, 142.54 | 96.31 | 20.88 | 72 |
| 5 | 11/30/2025 | 02:33:10 | -74.47, -50.35 | 83.77 | 11/30/2025 | 02:34:24 | -74.49, -50.36 | 83.76 | 2.21 | 74 |
| 6 | 11/30/2025 | 03:23:56 | 74.49, 116.90 | 96.27 | 11/30/2025 | 03:25:05 | 74.48, 116.94 | 96.24 | 2.13 | 69 |
| 7 | 11/30/2025 | 04:14:40 | -74.47, -75.72 | 83.76 | 11/30/2025 | 04:15:46 | -74.49, -75.71 | 83.75 | 2.25 | 66 |
| 8 | 11/30/2025 | 05:05:26 | 74.49, 91.53 | 96.28 | 11/30/2025 | 05:06:27 | 74.48, 91.60 | 96.25 | 2.68 | 61 |
| 9 | 11/30/2025 | 05:56:10 | -74.47,-101.09 | 83.75 | 11/30/2025 | 05:57:08 | -74.49,-101.05 | 83.74 | 2.56 | 58 |
| 10 | 11/30/2025 | 06:46:56 | 74.49, 66.15 | 96.29 | 11/30/2025 | 06:47:49 | 74.48, 66.25 | 96.26 | 3.33 | 53 |
| 11 | 11/30/2025 | 07:37:40 | -74.46,-126.46 | 83.74 | 11/30/2025 | 07:38:30 | -74.49,-126.40 | 83.73 | 3.04 | 50 |
| 12 | 11/30/2025 | 08:28:25 | 74.44, 40.91 | 96.24 | 11/30/2025 | 08:29:11 | 74.48, 40.91 | 96.27 | 3.89 | 46 |
| 13 | 11/30/2025 | 09:19:10 | -74.46,-151.83 | 83.73 | 11/30/2025 | 09:19:53 | -74.44,-151.87 | 83.77 | 3.18 | 43 |
| 14 | 11/30/2025 | 10:09:55 | 74.44, 15.54 | 96.25 | 11/30/2025 | 10:10:34 | 74.43, 15.44 | 96.24 | 3.44 | 39 |
| 15 | 11/30/2025 | 11:00:40 | -74.46,-177.20 | 83.72 | 11/30/2025 | 11:01:15 | -74.44,-177.21 | 83.76 | 2.94 | 35 |
| 16 | 11/30/2025 | 11:51:25 | 74.44, -9.83 | 96.26 | 11/30/2025 | 11:51:56 | 74.43, -9.91 | 96.25 | 2.72 | 31 |
| 17 | 11/30/2025 | 12:42:10 | -74.46, 157.43 | 83.71 | 11/30/2025 | 12:42:37 | -74.43, 157.44 | 83.74 | 2.91 | 27 |
| 18 | 11/30/2025 | 13:32:55 | 74.44, -35.20 | 96.27 | 11/30/2025 | 13:33:18 | 74.42, -35.25 | 96.26 | 2.07 | 23 |
| 19 | 11/30/2025 | 14:23:40 | -74.46, 132.06 | 83.70 | 11/30/2025 | 14:23:59 | -74.43, 132.10 | 83.73 | 3.09 | 19 |
| 20 | 11/30/2025 | 15:14:25 | 74.44, -60.57 | 96.28 | 11/30/2025 | 15:14:40 | 74.42, -60.60 | 96.27 | 1.56 | 15 |
| 21 | 11/30/2025 | 16:05:09 | -74.41, 106.81 | 83.75 | 11/30/2025 | 16:05:21 | -74.43, 106.76 | 83.72 | 3.15 | 12 |
| 22 | 11/30/2025 | 16:55:55 | 74.43, -85.94 | 96.29 | 11/30/2025 | 16:56:02 | 74.42, -85.94 | 96.28 | 1.37 | 7 |
| 23 | 11/30/2025 | 17:46:39 | -74.41, 81.44 | 83.74 | 11/30/2025 | 17:46:43 | -74.43, 81.41 | 83.71 | 2.85 | 4 |
| 24 | 11/30/2025 | 18:37:25 | 74.43,-111.32 | 96.30 | 11/30/2025 | 18:37:24 | 74.42,-111.29 | 96.29 | 1.61 | 1 |
| 25 | 11/30/2025 | 19:28:09 | -74.41, 56.07 | 83.73 | 11/30/2025 | 19:28:05 | -74.43, 56.07 | 83.70 | 2.76 | 4 |
| 26 | 11/30/2025 | 20:18:55 | 74.43,-136.69 | 96.31 | 11/30/2025 | 20:18:46 | 74.42,-136.63 | 96.30 | 2.15 | 9 |
| 27 | 11/30/2025 | 21:09:39 | -74.40, 30.70 | 83.72 | 11/30/2025 | 21:09:27 | -74.43, 30.72 | 83.69 | 2.90 | 12 |
| 28 | 11/30/2025 | 22:00:25 | 74.43,-162.06 | 96.32 | 11/30/2025 | 22:00:08 | 74.42,-161.97 | 96.31 | 2.81 | 17 |
| 29 | 11/30/2025 | 22:51:09 | -74.40, 5.33 | 83.71 | 11/30/2025 | 22:50:49 | -74.43, 5.38 | 83.68 | 3.22 | 20 |
| 30 | 11/30/2025 | 23:41:55 | 74.43, 172.57 | 96.33 | 11/30/2025 | 23:41:30 | 74.42, 172.68 | 96.32 | 3.54 | 25 |
| 31 | 12/01/2025 | 00:32:39 | -74.40, -20.04 | 83.70 | 12/01/2025 | 00:32:12 | -74.38, -20.09 | 83.72 | 2.92 | 27 |
| 32 | 12/01/2025 | 01:23:24 | 74.38, 147.33 | 96.29 | 12/01/2025 | 01:22:53 | 74.37, 147.21 | 96.29 | 3.69 | 31 |
| 33 | 12/01/2025 | 02:14:09 | -74.40, -45.41 | 83.69 | 12/01/2025 | 02:13:34 | -74.38, -45.44 | 83.71 | 2.54 | 35 |
| 34 | 12/01/2025 | 03:04:53 | 74.38, 121.96 | 96.30 | 12/01/2025 | 03:04:14 | 74.37, 121.87 | 96.30 | 2.93 | 39 |
| 35 | 12/01/2025 | 03:55:38 | -74.40, -70.78 | 83.68 | 12/01/2025 | 03:54:55 | -74.38, -70.78 | 83.70 | 2.39 | 43 |
| 36 | 12/01/2025 | 04:46:23 | 74.38, 96.58 | 96.31 | 12/01/2025 | 04:45:36 | 74.37, 96.52 | 96.31 | 2.21 | 47 |
| 37 | 12/01/2025 | 05:37:08 | -74.40, -96.15 | 83.67 | 12/01/2025 | 05:36:17 | -74.38, -96.13 | 83.69 | 2.50 | 51 |
| 38 | 12/01/2025 | 06:27:53 | 74.38, 71.21 | 96.32 | 12/01/2025 | 06:26:58 | 74.36, 71.18 | 96.32 | 1.57 | 55 |
| 39 | 12/01/2025 | 07:18:38 | -74.39,-121.53 | 83.66 | 12/01/2025 | 07:17:39 | -74.37,-121.47 | 83.67 | 2.83 | 59 |
| 40 | 12/01/2025 | 08:09:23 | 74.37, 45.84 | 96.33 | 12/01/2025 | 08:08:20 | 74.36, 45.83 | 96.33 | 1.15 | 63 |
| 41 | 12/01/2025 | 09:00:08 | -74.39,-146.90 | 83.65 | 12/01/2025 | 08:59:01 | -74.37,-146.81 | 83.66 | 3.33 | 67 |
| 42 | 12/01/2025 | 09:50:53 | 74.37, 20.47 | 96.34 | 12/01/2025 | 09:49:42 | 74.36, 20.49 | 96.34 | 1.22 | 71 |
| 43 | 12/01/2025 | 10:41:37 | -74.34,-172.14 | 83.70 | 12/01/2025 | 10:40:23 | -74.37,-172.16 | 83.65 | 3.24 | 74 |
| 44 | 12/01/2025 | 11:32:20 | 74.22, -4.52 | 96.18 | 12/01/2025 | 11:31:07 | 74.21, -5.23 | 96.22 | 21.44 | 73 |
| 45 | 12/01/2025 | 12:23:02 | -74.10, 163.11 | 83.95 | 12/01/2025 | 12:21:50 | -74.13, 161.88 | 83.86 | 37.61 | 72 |
| 46 | 12/01/2025 | 13:13:44 | 73.93, -29.16 | 95.87 | 12/01/2025 | 13:12:35 | 73.92, -31.31 | 95.96 | 66.13 | 69 |
| 47 | 12/01/2025 | 14:04:26 | -73.80, 138.46 | 84.26 | 12/01/2025 | 14:03:19 | -73.78, 135.70 | 84.16 | 85.81 | 67 |
Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 11/23/2025
Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 11/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-B