Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between METOP-A and NPP Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/15/2021
| Index | Date (METOP-A) | Time (METOP-A) | Lat,Lon (METOP-A) | SZA (METOP-A ) | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Distance(km) | Time Diff (sec) |
| 1 | 05/19/2021 | 21:36:09 | 77.00,-161.57 | 57.57 | 05/19/2021 | 21:35:00 | 76.96,-163.88 | 57.74 | 58.09 | 69 |
| 2 | 05/19/2021 | 22:26:54 | -76.86, 5.21 | 122.53 | 05/19/2021 | 22:25:42 | -76.86, 3.87 | 122.41 | 33.87 | 72 |
| 3 | 05/19/2021 | 23:17:38 | 76.66, 171.82 | 57.34 | 05/19/2021 | 23:16:23 | 76.66, 171.96 | 57.34 | 3.71 | 75 |
| 4 | 05/20/2021 | 00:08:20 | -76.66, -20.88 | 122.68 | 05/20/2021 | 00:07:08 | -76.68, -20.82 | 122.64 | 2.88 | 72 |
| 5 | 05/20/2021 | 00:58:59 | 76.69, 146.58 | 57.34 | 05/20/2021 | 00:57:53 | 76.66, 146.58 | 57.33 | 3.61 | 66 |
| 6 | 05/20/2021 | 01:49:41 | -76.69, -46.12 | 122.68 | 05/20/2021 | 01:48:38 | -76.68, -46.20 | 122.65 | 2.07 | 63 |
| 7 | 05/20/2021 | 02:40:21 | 76.67, 121.16 | 57.31 | 05/20/2021 | 02:39:23 | 76.66, 121.20 | 57.32 | 1.49 | 58 |
| 8 | 05/20/2021 | 03:31:02 | -76.67, -71.53 | 122.70 | 05/20/2021 | 03:30:07 | -76.69, -71.58 | 122.66 | 2.48 | 55 |
| 9 | 05/20/2021 | 04:21:42 | 76.65, 95.75 | 57.29 | 05/20/2021 | 04:20:52 | 76.66, 95.81 | 57.31 | 1.92 | 50 |
| 10 | 05/20/2021 | 05:12:24 | -76.65, -96.94 | 122.73 | 05/20/2021 | 05:11:36 | -76.64, -96.79 | 122.73 | 3.84 | 48 |
| 11 | 05/20/2021 | 06:03:03 | 76.68, 70.51 | 57.29 | 05/20/2021 | 06:02:22 | 76.67, 70.43 | 57.29 | 2.52 | 41 |
| 12 | 05/20/2021 | 06:53:45 | -76.67,-122.19 | 122.73 | 05/20/2021 | 06:53:06 | -76.64,-122.18 | 122.74 | 3.20 | 39 |
| 13 | 05/20/2021 | 07:44:25 | 76.66, 45.10 | 57.26 | 05/20/2021 | 07:43:52 | 76.67, 45.05 | 57.28 | 1.45 | 33 |
| 14 | 05/20/2021 | 08:35:07 | -76.65,-147.60 | 122.75 | 05/20/2021 | 08:34:36 | -76.65,-147.56 | 122.75 | 1.34 | 31 |
| 15 | 05/20/2021 | 09:25:47 | 76.64, 19.68 | 57.23 | 05/20/2021 | 09:25:22 | 76.67, 19.67 | 57.27 | 3.19 | 25 |
| 16 | 05/20/2021 | 10:16:29 | -76.64,-173.01 | 122.78 | 05/20/2021 | 10:16:06 | -76.65,-172.94 | 122.77 | 2.32 | 23 |
| 17 | 05/20/2021 | 11:07:08 | 76.67, -5.56 | 57.24 | 05/20/2021 | 11:06:52 | 76.67, -5.72 | 57.26 | 4.03 | 16 |
| 18 | 05/20/2021 | 11:57:50 | -76.66, 161.74 | 122.78 | 05/20/2021 | 11:57:36 | -76.65, 161.68 | 122.78 | 2.12 | 14 |
| 19 | 05/20/2021 | 12:48:30 | 76.65, -30.97 | 57.21 | 05/20/2021 | 12:48:21 | 76.63, -30.93 | 57.19 | 2.41 | 9 |
| 20 | 05/20/2021 | 13:39:12 | -76.64, 136.33 | 122.80 | 05/20/2021 | 13:39:06 | -76.65, 136.29 | 122.79 | 1.51 | 6 |
| 21 | 05/20/2021 | 14:29:52 | 76.63, -56.38 | 57.18 | 05/20/2021 | 14:29:51 | 76.63, -56.31 | 57.18 | 1.89 | 1 |
| 22 | 05/20/2021 | 15:20:34 | -76.62, 110.92 | 122.83 | 05/20/2021 | 15:20:36 | -76.65, 110.91 | 122.80 | 3.48 | 2 |
| 23 | 05/20/2021 | 16:11:13 | 76.66, -81.63 | 57.19 | 05/20/2021 | 16:11:21 | 76.63, -81.69 | 57.17 | 2.96 | 8 |
| 24 | 05/20/2021 | 17:01:55 | -76.65, 85.68 | 122.83 | 05/20/2021 | 17:02:06 | -76.66, 85.53 | 122.81 | 3.85 | 11 |
| 25 | 05/20/2021 | 17:52:35 | 76.64,-107.04 | 57.16 | 05/20/2021 | 17:52:51 | 76.64,-107.08 | 57.16 | 0.91 | 16 |
| 26 | 05/20/2021 | 18:43:17 | -76.63, 60.27 | 122.85 | 05/20/2021 | 18:43:35 | -76.61, 60.32 | 122.88 | 2.26 | 18 |
| 27 | 05/20/2021 | 19:33:57 | 76.62,-132.45 | 57.13 | 05/20/2021 | 19:34:21 | 76.64,-132.46 | 57.15 | 2.29 | 24 |
| 28 | 05/20/2021 | 20:24:39 | -76.61, 34.85 | 122.88 | 05/20/2021 | 20:25:05 | -76.62, 34.93 | 122.89 | 2.13 | 26 |
| 29 | 05/20/2021 | 21:15:18 | 76.64,-157.70 | 57.14 | 05/20/2021 | 21:15:51 | 76.64,-157.84 | 57.13 | 3.72 | 33 |
| 30 | 05/20/2021 | 22:06:00 | -76.64, 9.61 | 122.88 | 05/20/2021 | 22:06:35 | -76.62, 9.55 | 122.90 | 2.63 | 35 |
| 31 | 05/20/2021 | 22:56:40 | 76.62, 176.89 | 57.11 | 05/20/2021 | 22:57:20 | 76.60, 176.95 | 57.07 | 3.33 | 40 |
| 32 | 05/20/2021 | 23:47:22 | -76.62, -15.80 | 122.90 | 05/20/2021 | 23:48:05 | -76.62, -15.83 | 122.92 | 0.74 | 43 |
| 33 | 05/21/2021 | 00:38:02 | 76.60, 151.48 | 57.08 | 05/21/2021 | 00:38:50 | 76.60, 151.56 | 57.06 | 2.26 | 48 |
| 34 | 05/21/2021 | 01:28:44 | -76.60, -41.21 | 122.93 | 05/21/2021 | 01:29:35 | -76.62, -41.21 | 122.93 | 2.51 | 51 |
| 35 | 05/21/2021 | 02:19:24 | 76.59, 126.07 | 57.06 | 05/21/2021 | 02:20:20 | 76.60, 126.18 | 57.04 | 3.39 | 56 |
| 36 | 05/21/2021 | 03:10:05 | -76.63, -66.46 | 122.93 | 05/21/2021 | 03:11:05 | -76.62, -66.60 | 122.94 | 3.50 | 60 |
| 37 | 05/21/2021 | 04:00:45 | 76.61, 100.82 | 57.06 | 05/21/2021 | 04:01:50 | 76.60, 100.80 | 57.03 | 1.14 | 65 |
| 38 | 05/21/2021 | 04:51:27 | -76.61, -91.87 | 122.95 | 05/21/2021 | 04:52:34 | -76.58, -91.81 | 123.01 | 3.22 | 67 |
| 39 | 05/21/2021 | 05:42:07 | 76.59, 75.41 | 57.03 | 05/21/2021 | 05:43:20 | 76.61, 75.41 | 57.02 | 1.43 | 73 |
| 40 | 05/21/2021 | 06:32:50 | -76.54,-117.44 | 123.01 | 05/21/2021 | 06:34:04 | -76.58,-117.19 | 123.02 | 8.02 | 74 |
| 41 | 05/21/2021 | 07:23:35 | 76.30, 49.03 | 56.83 | 05/21/2021 | 07:24:44 | 76.34, 51.03 | 56.68 | 52.88 | 69 |
| 42 | 05/21/2021 | 08:14:19 | -76.20,-143.97 | 123.24 | 05/21/2021 | 08:15:26 | -76.23,-141.26 | 123.47 | 71.93 | 67 |
Figure of METOP-A and NPP satellite orbits during SNOs since TLE Epoch: 5/15/2021
Download SNOs between METOP-A and NPP since TLE EPOCH: 05/15/2021 in txt file.
Historial Predications of SNOs between METOP-A and NPP