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: 11/23/2025
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 69.50, 131.25 90.55 11/27/2025 03:08:29 69.43, 132.60 90.50 53.49 70
2 11/27/2025 03:57:54 -69.06, -60.81 89.88 11/27/2025 03:59:07 -69.00, -60.62 89.94 10.45 73
3 11/27/2025 04:48:39 68.96, 106.63 90.03 11/27/2025 04:49:35 68.95, 106.69 90.01 3.19 56
4 11/27/2025 05:39:20 -68.90, -85.96 90.03 11/27/2025 05:40:05 -68.89, -86.00 90.04 1.88 45
5 11/27/2025 06:30:07 68.91, 81.33 89.98 11/27/2025 06:30:32 68.89, 81.38 89.97 2.53 25
6 11/27/2025 07:20:49 -68.84,-111.26 90.08 11/27/2025 07:21:03 -68.84,-111.31 90.08 2.28 14
7 11/27/2025 08:11:36 68.85, 56.04 89.94 11/27/2025 08:11:30 68.84, 56.07 89.93 1.90 6
8 11/27/2025 09:02:18 -68.79,-136.56 90.12 11/27/2025 09:02:01 -68.78,-136.62 90.13 2.75 17
9 11/27/2025 09:53:05 68.79, 30.74 89.90 11/27/2025 09:52:28 68.78, 30.76 89.88 1.30 37
10 11/27/2025 10:43:48 -68.78,-161.93 90.11 11/27/2025 10:42:58 -68.78,-161.86 90.11 2.54 50
11 11/27/2025 11:34:34 68.73, 5.44 89.85 11/27/2025 11:33:26 68.73, 5.45 89.84 0.77 68
12 11/27/2025 12:25:13 -68.51, 173.06 90.37 11/27/2025 12:24:00 -68.51, 172.55 90.38 21.05 73
13 11/27/2025 13:15:47 67.82, -18.74 88.96 11/27/2025 13:14:40 67.81, -20.96 88.92 93.01 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/23/2025
SNOs_Map_NPP_GCOM-C_20251123.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/23/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C