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: 2/20/2025
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 02/28/2025 00:31:29 -69.72, -10.97 102.33 02/28/2025 00:32:39 -69.68, -9.45 102.43 58.96 70
2 02/28/2025 01:22:04 69.12, 157.19 77.04 02/28/2025 01:23:16 69.15, 157.18 77.06 3.17 72
3 02/28/2025 02:12:48 -69.15, -35.52 102.96 02/28/2025 02:13:46 -69.14, -35.46 102.98 2.72 58
4 02/28/2025 03:03:33 69.08, 131.88 76.96 02/28/2025 03:04:14 69.09, 131.86 76.97 1.27 41
5 02/28/2025 03:54:16 -69.05, -60.76 103.09 02/28/2025 03:54:44 -69.07, -60.78 103.06 2.82 28
6 02/28/2025 04:45:02 69.04, 106.57 76.89 02/28/2025 04:45:12 69.02, 106.53 76.88 1.80 10
7 02/28/2025 05:35:45 -69.01, -86.07 103.16 02/28/2025 05:35:42 -69.01, -86.11 103.15 1.45 3
8 02/28/2025 06:26:31 68.99, 81.25 76.82 02/28/2025 06:26:09 69.01, 81.28 76.84 2.81 22
9 02/28/2025 07:17:14 -68.96,-111.39 103.23 02/28/2025 07:16:40 -68.95,-111.43 103.24 2.44 34
10 02/28/2025 08:08:00 68.95, 55.94 76.74 02/28/2025 08:07:07 68.95, 55.96 76.75 0.79 53
11 02/28/2025 08:58:43 -68.92,-136.70 103.30 02/28/2025 08:57:37 -68.94,-136.68 103.28 2.24 66
12 02/28/2025 09:49:23 68.58, 31.06 76.34 02/28/2025 09:48:11 68.56, 30.21 76.36 34.84 72
13 02/28/2025 10:39:58 -68.12,-161.03 104.16 02/28/2025 10:38:49 -68.12,-162.99 104.08 81.15 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 2/20/2025
SNOs_Map_NPP_GCOM-C_20250220.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 02/20/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C