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: 10/3/2023
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 10/04/2023 21:59:28 70.89,-154.50 75.31 10/04/2023 22:00:36 70.78,-152.71 75.19 66.48 68
2 10/04/2023 22:49:58 -70.16, 13.98 105.42 10/04/2023 22:50:15 -70.18, 14.04 105.40 2.87 17
3 10/04/2023 23:40:41 70.00,-178.47 74.44 10/04/2023 23:39:43 70.02,-178.55 74.46 3.47 58
4 10/07/2023 14:16:06 70.21, -37.63 75.65 10/07/2023 14:17:17 70.20, -37.68 75.64 2.17 71
5 10/07/2023 15:06:48 -70.11, 129.84 104.44 10/07/2023 15:06:47 -70.10, 129.80 104.45 2.00 1
6 10/07/2023 15:57:28 69.79, -62.38 75.26 10/07/2023 15:56:16 69.88, -62.86 75.35 21.01 72
7 10/10/2023 06:32:56 70.17, 78.22 76.63 10/10/2023 06:33:47 70.19, 78.18 76.65 2.91 51
8 10/10/2023 07:23:38 -70.07,-114.32 103.46 10/10/2023 07:23:17 -70.09,-114.34 103.45 2.03 21
9 10/10/2023 08:14:05 69.06, 54.45 75.55 10/10/2023 08:12:59 69.15, 52.03 75.64 96.44 66
10 10/12/2023 22:49:46 70.14,-165.96 77.61 10/12/2023 22:50:17 70.14,-166.01 77.61 1.95 31
11 10/12/2023 23:40:28 -70.04, 1.51 102.48 10/12/2023 23:39:47 -70.04, 1.48 102.49 1.33 41
12 10/15/2023 14:16:01 -70.75, 141.55 100.80 10/15/2023 14:17:10 -70.66, 142.99 100.89 53.81 69
13 10/15/2023 15:06:35 70.13, -50.15 78.60 10/15/2023 15:06:45 70.10, -50.18 78.57 3.03 10
14 10/15/2023 15:57:17 -70.03, 117.32 101.50 10/15/2023 15:56:15 -70.00, 117.31 101.52 2.80 62

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/3/2023
SNOs_Map_NPP_LANDSAT-9_20231003.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/03/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9