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: 6/13/2025
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 06/24/2025 15:20:52 69.96, -53.35 46.51 06/24/2025 15:21:58 69.91, -50.80 46.41 97.53 66
2 06/24/2025 16:11:27 -69.48, 114.67 133.99 06/24/2025 16:12:38 -69.38, 115.80 134.12 45.53 71
3 06/24/2025 17:02:04 69.01, -77.35 45.52 06/24/2025 17:03:12 69.00, -77.33 45.52 0.66 68
4 06/24/2025 17:52:47 -68.95, 90.04 134.53 06/24/2025 17:53:43 -68.95, 89.97 134.54 2.67 56
5 06/24/2025 18:43:33 68.96,-102.66 45.48 06/24/2025 18:44:10 68.95,-102.64 45.47 0.87 37
6 06/24/2025 19:34:16 -68.90, 64.73 134.58 06/24/2025 19:34:41 -68.90, 64.66 134.59 2.76 25
7 06/24/2025 20:25:02 68.91,-127.96 45.43 06/24/2025 20:25:08 68.90,-127.95 45.42 1.22 6
8 06/24/2025 21:15:45 -68.86, 39.42 134.63 06/24/2025 21:15:39 -68.85, 39.36 134.64 2.89 6
9 06/24/2025 22:06:31 68.86,-153.27 45.38 06/24/2025 22:06:06 68.84,-153.26 45.37 1.63 25
10 06/24/2025 22:57:14 -68.81, 14.12 134.68 06/24/2025 22:56:37 -68.79, 14.05 134.69 3.05 37
11 06/24/2025 23:48:00 68.81,-178.58 45.33 06/24/2025 23:47:04 68.79,-178.57 45.32 2.05 56
12 06/25/2025 00:38:43 -68.76, -11.19 134.73 06/25/2025 00:37:35 -68.74, -11.26 134.74 3.25 68
13 06/25/2025 01:29:21 68.33, 156.68 44.84 06/25/2025 01:28:10 68.31, 155.56 44.84 46.18 71
14 06/25/2025 02:19:56 -67.85, -35.39 135.65 06/25/2025 02:18:48 -67.88, -37.60 135.57 92.47 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 6/13/2025
SNOs_Map_NPP_GCOM-C_20250613.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 06/13/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C