Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-19 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/18/2025
Index Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 07/22/2025 20:49:50 -70.17, 41.39 129.80 07/22/2025 20:50:56 -70.23, 43.83 129.87 92.05 66
2 07/22/2025 21:40:41 70.68,-150.53 50.66 07/22/2025 21:41:53 70.77,-149.73 50.71 31.29 72
3 07/22/2025 22:31:31 -70.97, 17.24 129.06 07/22/2025 22:32:40 -70.97, 17.26 129.08 0.88 69
4 07/22/2025 23:22:31 71.01,-175.45 50.98 07/22/2025 23:23:27 70.99,-175.47 50.95 2.04 56
5 07/23/2025 00:13:27 -70.99, -8.21 129.03 07/23/2025 00:14:11 -71.02, -8.21 129.01 3.77 44
6 07/23/2025 01:04:27 71.03, 159.10 51.01 07/23/2025 01:04:58 71.05, 159.06 51.03 2.62 31
7 07/23/2025 01:55:23 -71.01, -33.66 129.00 07/23/2025 01:55:41 -71.03, -33.59 128.99 3.27 18
8 07/23/2025 02:46:23 71.05, 133.65 51.05 07/23/2025 02:46:28 71.05, 133.68 51.05 1.07 5
9 07/23/2025 03:37:18 -71.08, -59.02 128.92 07/23/2025 03:37:12 -71.09, -59.06 128.91 1.72 6
10 07/23/2025 04:28:17 71.12, 108.30 51.13 07/23/2025 04:27:58 71.11, 108.21 51.12 3.35 19
11 07/23/2025 05:19:13 -71.10, -84.47 128.89 07/23/2025 05:18:41 -71.09, -84.44 128.89 1.27 32
12 07/23/2025 06:10:13 71.14, 82.85 51.16 07/23/2025 06:09:28 71.11, 82.83 51.14 2.85 45
13 07/23/2025 07:01:09 -71.12,-109.92 128.85 07/23/2025 07:00:12 -71.15,-109.92 128.82 3.17 57
14 07/23/2025 07:52:09 71.16, 57.40 51.19 07/23/2025 07:50:59 71.17, 57.35 51.22 2.20 70
15 07/23/2025 08:43:00 -71.39,-134.90 128.58 07/23/2025 08:41:47 -71.41,-135.75 128.52 30.16 73
16 07/23/2025 09:33:50 71.94, 33.38 51.94 07/23/2025 09:32:43 71.90, 30.67 52.02 93.87 67

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 7/18/2025
SNOs_Map_NOAA-19_NPP_20250718.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 07/18/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP