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: 7/29/2023
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 07/30/2023 05:43:11 70.27, 90.69 51.69 07/30/2023 05:43:50 70.29, 90.71 51.71 3.08 39
2 07/30/2023 06:33:53 -70.19,-101.87 128.38 07/30/2023 06:33:20 -70.18,-101.83 128.40 2.27 33
3 08/01/2023 21:09:36 -71.12, 37.76 126.75 08/01/2023 21:10:43 -71.01, 40.03 126.95 83.02 67
4 08/01/2023 22:00:05 70.22,-153.47 52.30 08/01/2023 22:00:23 70.21,-153.53 52.29 2.66 18
5 08/01/2023 22:50:47 -70.13, 13.98 127.78 08/01/2023 22:49:52 -70.15, 14.01 127.76 2.17 55
6 08/04/2023 13:26:15 -70.29, 154.88 126.94 08/04/2023 13:27:27 -70.31, 154.85 126.93 2.74 72
7 08/04/2023 14:17:00 70.22, -37.71 53.00 08/04/2023 14:16:54 70.21, -37.66 52.99 2.54 6
8 08/04/2023 15:07:39 -69.98, 129.98 127.25 08/04/2023 15:06:25 -70.05, 129.74 127.16 11.62 74
9 08/07/2023 05:43:10 -70.30, -89.37 126.20 08/07/2023 05:43:58 -70.29, -89.30 126.22 2.66 48
10 08/07/2023 06:33:54 70.18, 78.11 53.69 08/07/2023 06:33:25 70.19, 78.19 53.69 3.03 29
11 08/09/2023 21:09:38 71.25,-142.48 55.55 08/09/2023 21:10:43 71.18,-139.71 55.38 99.58 65
12 08/09/2023 22:00:03 -70.26, 26.45 125.48 08/09/2023 22:00:28 -70.25, 26.52 125.50 2.65 25
13 08/09/2023 22:50:47 70.15,-166.07 54.41 08/09/2023 22:49:55 70.14,-165.99 54.41 2.95 52

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/29/2023
SNOs_Map_NPP_LANDSAT-9_20230729.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/29/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9