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: 11/19/2025
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 11/27/2025 03:07:19 69.56, 131.16 90.61 11/27/2025 03:08:28 69.49, 132.68 90.55 59.57 69
2 11/27/2025 03:57:53 -69.07, -60.82 89.88 11/27/2025 03:59:07 -69.00, -60.62 89.94 10.95 74
3 11/27/2025 04:48:37 68.92, 106.70 89.98 11/27/2025 04:49:35 68.95, 106.69 90.01 3.24 58
4 11/27/2025 05:39:20 -68.91, -85.97 90.03 11/27/2025 05:40:06 -68.90, -86.00 90.04 1.81 46
5 11/27/2025 06:30:07 68.91, 81.33 89.99 11/27/2025 06:30:33 68.89, 81.38 89.97 3.31 26
6 11/27/2025 07:20:49 -68.85,-111.26 90.07 11/27/2025 07:21:04 -68.84,-111.31 90.08 2.07 15
7 11/27/2025 08:11:36 68.86, 56.03 89.95 11/27/2025 08:11:31 68.84, 56.07 89.93 2.77 5
8 11/27/2025 09:02:18 -68.79,-136.56 90.11 11/27/2025 09:02:02 -68.79,-136.62 90.12 2.42 16
9 11/27/2025 09:53:05 68.80, 30.73 89.90 11/27/2025 09:52:29 68.78, 30.76 89.88 2.27 36
10 11/27/2025 10:43:46 -68.74,-161.86 90.16 11/27/2025 10:42:59 -68.73,-161.93 90.17 2.82 47
11 11/27/2025 11:34:33 68.74, 5.44 89.86 11/27/2025 11:33:26 68.73, 5.45 89.84 1.83 67
12 11/27/2025 12:25:13 -68.57, 172.98 90.31 11/27/2025 12:23:59 -68.57, 172.62 90.32 14.78 74
13 11/27/2025 13:15:47 67.88, -18.82 89.02 11/27/2025 13:14:39 67.86, -20.89 88.97 86.85 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/19/2025
SNOs_Map_NPP_GCOM-C_20251120.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/19/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C