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: 1/20/2025
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 01/20/2025 05:17:07 69.73, 97.54 89.78 01/20/2025 05:18:17 69.68, 98.87 89.69 51.57 70
2 01/20/2025 06:07:42 -69.25, -94.45 90.73 01/20/2025 06:08:55 -69.23, -94.38 90.75 2.77 73
3 01/20/2025 06:58:27 69.20, 72.93 89.22 01/20/2025 06:59:23 69.19, 72.95 89.21 0.75 56
4 01/20/2025 07:49:11 -69.20,-119.75 90.80 01/20/2025 07:49:53 -69.18,-119.70 90.82 2.92 42
5 01/20/2025 08:39:56 69.15, 47.63 89.15 01/20/2025 08:40:21 69.14, 47.63 89.14 1.25 25
6 01/20/2025 09:30:39 -69.09,-144.98 90.92 01/20/2025 09:30:51 -69.12,-145.01 90.89 3.29 12
7 01/20/2025 10:21:25 69.10, 22.32 89.08 01/20/2025 10:21:19 69.08, 22.32 89.07 2.04 6
8 01/20/2025 11:12:08 -69.04,-170.29 90.99 01/20/2025 11:11:49 -69.06,-170.33 90.96 2.80 19
9 01/20/2025 12:02:54 69.05, -2.98 89.02 01/20/2025 12:02:17 69.02, -3.00 89.00 2.87 37
10 01/20/2025 12:53:37 -69.00, 164.41 91.05 01/20/2025 12:52:47 -69.01, 164.36 91.03 2.48 50
11 01/20/2025 13:44:23 69.00, -28.29 88.95 01/20/2025 13:43:14 69.02, -28.24 88.98 3.12 69
12 01/20/2025 14:35:02 -68.73, 139.39 91.34 01/20/2025 14:33:49 -68.74, 138.75 91.31 25.67 73
13 01/20/2025 15:25:35 68.04, -52.40 87.94 01/20/2025 15:24:28 68.10, -54.68 88.08 95.29 67
14 02/02/2025 03:42:03 -69.91, -58.93 93.31 02/02/2025 03:43:11 -69.86, -57.01 93.44 73.80 68
15 02/02/2025 04:32:37 69.29, 109.28 86.04 02/02/2025 04:33:49 69.28, 109.55 86.00 10.45 72
16 02/02/2025 05:23:19 -69.18, -83.23 94.10 02/02/2025 05:24:21 -69.16, -83.25 94.13 2.10 62
17 02/02/2025 06:14:04 69.14, 84.13 85.86 02/02/2025 06:14:48 69.17, 84.15 85.87 3.10 44
18 02/02/2025 07:04:48 -69.13,-108.54 94.17 02/02/2025 07:05:18 -69.15,-108.49 94.15 3.37 30
19 02/02/2025 07:55:33 69.09, 58.82 85.79 02/02/2025 07:55:46 69.11, 58.83 85.80 1.77 13
20 02/02/2025 08:46:17 -69.08,-133.85 94.24 02/02/2025 08:46:16 -69.09,-133.81 94.23 2.20 1
21 02/02/2025 09:37:02 69.04, 33.51 85.72 02/02/2025 09:36:44 69.05, 33.52 85.72 0.45 18
22 02/02/2025 10:27:46 -69.03,-159.16 94.31 02/02/2025 10:27:14 -69.04,-159.12 94.31 1.35 32
23 02/02/2025 11:18:31 69.00, 8.20 85.64 02/02/2025 11:17:42 68.99, 8.20 85.64 0.89 49
24 02/02/2025 12:09:15 -68.99, 175.53 94.38 02/02/2025 12:08:12 -68.98, 175.56 94.38 1.52 63
25 02/02/2025 12:59:56 68.73, -16.82 85.35 02/02/2025 12:58:43 68.77, -17.34 85.41 21.31 73
26 02/02/2025 13:50:31 -68.24, 151.15 95.17 02/02/2025 13:49:22 -68.27, 149.39 95.07 72.28 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 1/20/2025
SNOs_Map_NPP_GCOM-C_20250120.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 01/20/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C