Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/30/2023
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 10/02/2023 06:33:08 -70.19,-101.85 106.42 10/02/2023 06:33:44 -70.20,-101.81 106.42 1.72 36
2 10/02/2023 07:23:52 70.09, 65.62 73.49 10/02/2023 07:23:11 70.09, 65.68 73.50 2.58 41
3 10/04/2023 21:59:29 70.91,-154.54 75.33 10/04/2023 22:00:37 70.76,-152.74 75.17 67.77 68
4 10/04/2023 22:49:59 -70.18, 13.95 105.40 10/04/2023 22:50:16 -70.16, 14.01 105.42 3.16 17
5 10/04/2023 23:40:42 70.02,-178.50 74.46 10/04/2023 23:39:43 70.05,-178.50 74.49 3.34 59
6 10/07/2023 14:16:07 70.22, -37.65 75.66 10/07/2023 14:17:17 70.25, -37.62 75.69 3.00 70
7 10/07/2023 15:06:49 -70.12, 129.82 104.43 10/07/2023 15:06:47 -70.15, 129.87 104.41 3.10 2
8 10/07/2023 15:57:29 69.81, -62.40 75.28 10/07/2023 15:56:17 69.87, -62.88 75.33 19.44 72
9 10/10/2023 06:32:56 70.18, 78.20 76.64 10/10/2023 06:33:47 70.19, 78.18 76.65 1.68 51
10 10/10/2023 07:23:38 -70.08,-114.33 103.46 10/10/2023 07:23:17 -70.09,-114.33 103.44 1.54 21
11 10/10/2023 08:14:05 69.07, 54.44 75.56 10/10/2023 08:12:59 69.15, 52.03 75.63 95.92 66
12 10/12/2023 22:49:46 70.14,-165.96 77.61 10/12/2023 22:50:17 70.15,-166.00 77.62 1.72 31
13 10/12/2023 23:40:28 -70.04, 1.51 102.48 10/12/2023 23:39:47 -70.05, 1.49 102.47 1.51 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/30/2023
SNOs_Map_NPP_LANDSAT-9_20230930.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/30/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9