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: 10/10/2025
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 05:19:54 69.50, 97.93 79.48 10/19/2025 05:21:04 69.43, 99.32 79.43 54.72 70
2 10/19/2025 06:10:29 -69.01, -94.06 101.00 10/19/2025 06:11:42 -69.00, -93.91 101.01 6.33 73
3 10/19/2025 07:01:13 68.92, 73.38 78.92 10/19/2025 07:02:10 68.95, 73.40 78.95 3.03 57
4 10/19/2025 07:51:57 -68.91,-119.29 101.08 10/19/2025 07:52:41 -68.89,-119.29 101.10 2.13 44
5 10/19/2025 08:42:42 68.87, 48.08 78.90 10/19/2025 08:43:08 68.89, 48.09 78.92 2.42 26
6 10/19/2025 09:33:26 -68.86,-144.60 101.10 10/19/2025 09:33:39 -68.83,-144.61 101.13 2.67 13
7 10/19/2025 10:24:11 68.82, 22.77 78.87 10/19/2025 10:24:06 68.83, 22.78 78.89 1.84 5
8 10/19/2025 11:14:55 -68.81,-169.90 101.13 10/19/2025 11:14:37 -68.78,-169.92 101.16 3.24 18
9 10/19/2025 12:05:40 68.76, -2.53 78.85 10/19/2025 12:05:04 68.78, -2.53 78.85 1.31 36
10 10/19/2025 12:56:24 -68.75, 164.80 101.16 10/19/2025 12:55:34 -68.77, 164.84 101.14 2.92 50
11 10/19/2025 13:47:09 68.71, -27.84 78.82 10/19/2025 13:46:02 68.72, -27.85 78.82 0.91 67
12 10/19/2025 14:37:49 -68.49, 139.78 101.39 10/19/2025 14:36:36 -68.50, 139.25 101.39 21.70 73
13 10/19/2025 15:28:23 67.85, -52.10 78.01 10/19/2025 15:27:15 67.85, -54.19 77.96 87.70 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/10/2025
SNOs_Map_NPP_GCOM-C_20251010.jpg

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

Historial Predications of SNOs between NPP and GCOM-C