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: 3/5/2025
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 03/12/2025 22:56:08 69.83,-167.27 72.75 03/12/2025 22:57:16 69.75,-165.43 72.61 70.93 68
2 03/12/2025 23:46:42 -69.34, 0.78 107.78 03/12/2025 23:47:55 -69.26, 1.25 107.88 20.10 73
3 03/13/2025 00:37:24 69.10, 168.42 71.96 03/13/2025 00:38:25 69.10, 168.40 71.95 0.71 61
4 03/13/2025 01:28:07 -69.08, -24.24 108.08 03/13/2025 01:28:55 -69.09, -24.23 108.07 1.68 48
5 03/13/2025 02:18:53 69.05, 143.11 71.88 03/13/2025 02:19:23 69.03, 143.08 71.86 2.42 30
6 03/13/2025 03:09:36 -69.04, -49.55 108.15 03/13/2025 03:09:53 -69.03, -49.55 108.16 0.66 17
7 03/13/2025 04:00:22 69.01, 117.79 71.81 03/13/2025 04:00:20 69.02, 117.83 71.82 2.19 2
8 03/13/2025 04:51:05 -68.99, -74.87 108.22 03/13/2025 04:50:51 -68.97, -74.87 108.25 2.85 14
9 03/13/2025 05:41:51 68.97, 92.48 71.74 03/13/2025 05:41:18 68.96, 92.51 71.74 1.42 33
10 03/13/2025 06:32:34 -68.95,-100.18 108.30 03/13/2025 06:31:48 -68.96,-100.12 108.28 2.70 46
11 03/13/2025 07:23:20 68.92, 67.16 71.67 03/13/2025 07:22:16 68.90, 67.19 71.65 3.10 64
12 03/13/2025 08:14:01 -68.80,-125.35 108.48 03/13/2025 08:12:47 -68.84,-125.51 108.42 7.86 74
13 03/13/2025 09:04:35 68.13, 42.84 70.82 03/13/2025 09:03:27 68.13, 40.95 70.88 78.14 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 3/5/2025
SNOs_Map_NPP_GCOM-C_20250305.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 03/05/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C