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: 3/4/2025
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 03/12/2025 22:56:08 69.80,-167.22 72.72 03/12/2025 22:57:17 69.70,-165.51 72.56 67.05 69
2 03/12/2025 23:46:42 -69.31, 0.82 107.81 03/12/2025 23:47:55 -69.27, 1.25 107.88 17.63 73
3 03/13/2025 00:37:25 69.12, 168.38 71.98 03/13/2025 00:38:25 69.10, 168.40 71.95 2.90 60
4 03/13/2025 01:28:08 -69.10, -24.27 108.05 03/13/2025 01:28:55 -69.10, -24.22 108.07 2.23 47
5 03/13/2025 02:18:53 69.03, 143.14 71.86 03/13/2025 02:19:23 69.03, 143.08 71.86 2.67 30
6 03/13/2025 03:09:36 -69.01, -49.51 108.18 03/13/2025 03:09:53 -69.03, -49.55 108.16 2.94 17
7 03/13/2025 04:00:22 68.98, 117.83 71.78 03/13/2025 04:00:21 68.97, 117.76 71.77 3.19 1
8 03/13/2025 04:51:05 -68.97, -74.83 108.25 03/13/2025 04:50:51 -68.97, -74.87 108.25 1.64 14
9 03/13/2025 05:41:51 68.94, 92.51 71.71 03/13/2025 05:41:18 68.96, 92.51 71.73 2.33 33
10 03/13/2025 06:32:34 -68.92,-100.14 108.33 03/13/2025 06:31:49 -68.91,-100.19 108.34 2.63 45
11 03/13/2025 07:23:20 68.90, 67.20 71.64 03/13/2025 07:22:16 68.90, 67.19 71.65 0.56 64
12 03/13/2025 08:14:02 -68.83,-125.39 108.45 03/13/2025 08:12:47 -68.84,-125.51 108.43 5.36 75
13 03/13/2025 09:04:35 68.10, 42.87 70.79 03/13/2025 09:03:27 68.13, 40.95 70.88 79.73 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 3/4/2025
SNOs_Map_NPP_GCOM-C_20250304.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 03/04/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C