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: 9/5/2025
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 09/10/2025 10:04:24 -69.63,-153.51 115.23 09/10/2025 10:05:33 -69.61,-151.72 115.26 69.55 69
2 09/10/2025 10:54:58 69.04, 14.64 64.19 09/10/2025 10:56:10 69.03, 14.84 64.17 8.29 72
3 09/10/2025 11:45:40 -68.94,-177.91 115.91 09/10/2025 11:46:42 -68.92,-177.92 115.93 2.69 62
4 09/10/2025 12:36:26 68.93, -10.58 64.10 09/10/2025 12:37:09 68.92, -10.54 64.09 2.36 43
5 09/10/2025 13:27:09 -68.89, 156.80 115.93 09/10/2025 13:27:40 -68.87, 156.77 115.95 2.38 31
6 09/10/2025 14:17:55 68.88, -35.88 64.07 09/10/2025 14:18:07 68.87, -35.84 64.06 1.85 12
7 09/10/2025 15:08:38 -68.83, 131.50 115.96 09/10/2025 15:08:38 -68.82, 131.46 115.98 2.15 0
8 09/10/2025 15:59:24 68.82, -61.18 64.04 09/10/2025 15:59:05 68.82, -61.15 64.04 1.39 19
9 09/10/2025 16:50:07 -68.78, 106.20 115.99 09/10/2025 16:49:36 -68.76, 106.16 116.00 2.01 31
10 09/10/2025 17:40:53 68.77, -86.48 64.01 09/10/2025 17:40:03 68.76, -86.46 64.01 1.01 50
11 09/10/2025 18:31:36 -68.72, 80.90 116.02 09/10/2025 18:30:34 -68.71, 80.85 116.03 1.99 62
12 09/10/2025 19:22:18 68.50,-111.50 63.77 09/10/2025 19:21:05 68.50,-112.05 63.77 22.44 73
13 09/10/2025 20:12:53 -68.02, 56.43 116.70 09/10/2025 20:11:44 -68.01, 54.72 116.70 71.33 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 9/5/2025
SNOs_Map_NPP_GCOM-C_20250906.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 09/05/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C