Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/15/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 07/16/2025 11:46:40 74.14, -7.53 53.21 07/16/2025 11:47:22 74.12, -7.55 53.18 2.56 42
2 07/16/2025 12:37:22 -74.06, 159.98 126.88 07/16/2025 12:36:43 -74.04, 159.94 126.89 3.07 39
3 07/18/2025 22:08:20 -74.16, 17.01 126.34 07/18/2025 22:09:04 -74.14, 17.02 126.38 2.72 44
4 07/18/2025 22:59:05 74.10,-175.53 53.59 07/18/2025 22:58:24 74.08,-175.43 53.58 3.44 41
5 07/21/2025 08:30:02 74.15, 41.61 54.11 07/21/2025 08:30:45 74.17, 41.62 54.11 1.57 43
6 07/21/2025 09:20:44 -74.07,-150.87 125.98 07/21/2025 09:20:06 -74.09,-150.88 125.95 1.98 38
7 07/23/2025 18:51:42 -74.18, 66.14 125.37 07/23/2025 18:52:27 -74.17, 66.15 125.40 1.33 45
8 07/23/2025 19:42:27 74.12,-126.40 54.57 07/23/2025 19:41:47 74.10,-126.32 54.56 2.78 40
9 07/26/2025 05:13:24 74.18, 90.72 55.15 07/26/2025 05:14:08 74.17, 90.67 55.13 2.27 44
10 07/26/2025 06:04:06 -74.10,-101.75 124.94 07/26/2025 06:03:29 -74.10,-101.81 124.93 1.84 37
11 07/28/2025 15:35:03 -74.21, 115.24 124.26 07/28/2025 15:35:48 -74.20, 115.28 124.29 1.69 45
12 07/28/2025 16:25:47 74.10, -77.18 55.63 07/28/2025 16:25:08 74.13, -77.21 55.66 2.80 39

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 7/15/2025
SNOs_Map_NPP_TERRA_20250715.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 07/15/2025 in txt file.

Historial Predications of SNOs between NPP and TERRA