Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and GCOM-C Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/18/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (GCOM-C) Time (GCOM-C) Lat,Lon (GCOM-C) SZA (GCOM-C ) Distance(km) Time Diff (sec)
1 10/19/2025 05:19:58 69.73, 97.60 79.70 10/19/2025 05:21:06 69.69, 99.66 79.70 79.48 68
2 10/19/2025 06:10:33 -69.25, -94.39 100.77 10/19/2025 06:11:45 -69.21, -93.66 100.80 29.17 72
3 10/19/2025 07:01:13 68.93, 73.36 78.93 10/19/2025 07:02:17 68.95, 73.37 78.95 1.84 64
4 10/19/2025 07:51:57 -68.93,-119.32 101.06 10/19/2025 07:52:47 -68.94,-119.25 101.04 3.05 50
5 10/19/2025 08:42:42 68.88, 48.06 78.91 10/19/2025 08:43:15 68.90, 48.07 78.93 2.15 33
6 10/19/2025 09:33:26 -68.88,-144.62 101.09 10/19/2025 09:33:45 -68.89,-144.56 101.07 3.26 19
7 10/19/2025 10:24:11 68.83, 22.76 78.88 10/19/2025 10:24:13 68.85, 22.77 78.90 2.47 2
8 10/19/2025 11:14:55 -68.83,-169.93 101.11 10/19/2025 11:14:43 -68.85,-169.86 101.09 3.50 12
9 10/19/2025 12:05:40 68.77, -2.55 78.86 10/19/2025 12:05:11 68.80, -2.54 78.88 2.80 29
10 10/19/2025 12:56:24 -68.77, 164.77 101.14 10/19/2025 12:55:42 -68.74, 164.77 101.17 3.37 42
11 10/19/2025 13:47:09 68.72, -27.85 78.83 10/19/2025 13:46:09 68.75, -27.84 78.85 3.12 60
12 10/19/2025 14:37:53 -68.72, 139.47 101.16 10/19/2025 14:36:40 -68.69, 139.46 101.20 3.04 73
13 10/19/2025 15:28:28 68.13, -52.45 78.28 10/19/2025 15:27:18 68.10, -53.91 78.22 60.33 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/18/2025
SNOs_Map_NPP_GCOM-C_20251018.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/18/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C