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: 2/21/2025
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 -69.69, -9.45 102.42 58.68 70
2 02/28/2025 01:22:05 69.17, 157.13 77.09 02/28/2025 01:23:16 69.16, 157.19 77.06 2.86 71
3 02/28/2025 02:12:48 -69.14, -35.51 102.96 02/28/2025 02:13:46 -69.14, -35.46 102.97 2.29 58
4 02/28/2025 03:03:33 69.07, 131.89 76.96 02/28/2025 03:04:14 69.09, 131.86 76.97 2.47 41
5 02/28/2025 03:54:17 -69.10, -60.83 103.04 02/28/2025 03:54:44 -69.08, -60.78 103.06 2.85 27
6 02/28/2025 04:45:02 69.03, 106.58 76.88 02/28/2025 04:45:12 69.03, 106.54 76.88 1.55 10
7 02/28/2025 05:35:45 -69.00, -86.07 103.17 02/28/2025 05:35:42 -69.01, -86.10 103.15 2.22 3
8 02/28/2025 06:26:31 68.98, 81.27 76.81 02/28/2025 06:26:10 68.96, 81.21 76.79 2.93 21
9 02/28/2025 07:17:14 -68.95,-111.38 103.24 02/28/2025 07:16:40 -68.95,-111.43 103.24 2.09 34
10 02/28/2025 08:08:00 68.94, 55.95 76.74 02/28/2025 08:07:07 68.95, 55.96 76.76 1.75 53
11 02/28/2025 08:58:43 -68.91,-136.69 103.31 02/28/2025 08:57:37 -68.94,-136.68 103.27 3.25 66
12 02/28/2025 09:49:23 68.57, 31.07 76.33 02/28/2025 09:48:11 68.56, 30.21 76.36 35.02 72
13 02/28/2025 10:39:58 -68.12,-161.02 104.16 02/28/2025 10:38:49 -68.12,-162.98 104.08 81.38 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 2/21/2025
SNOs_Map_NPP_GCOM-C_20250221.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 02/21/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C