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: 9/23/2023
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 09/24/2023 06:33:20 70.18, 78.14 70.47 09/24/2023 06:33:41 70.19, 78.19 70.48 2.35 21
2 09/24/2023 07:24:02 -70.09,-114.40 109.62 09/24/2023 07:23:11 -70.08,-114.34 109.63 2.50 51
3 09/26/2023 21:59:29 -70.35, 26.35 108.34 09/26/2023 22:00:41 -70.29, 26.58 108.40 10.63 72
4 09/26/2023 22:50:11 70.14,-166.02 71.47 09/26/2023 22:50:09 70.13,-166.01 71.45 1.13 2
5 09/26/2023 23:40:52 -69.99, 1.53 108.68 09/26/2023 23:39:39 -70.02, 1.47 108.65 4.03 73
6 09/29/2023 14:16:17 -70.21, 142.35 107.44 09/29/2023 14:17:08 -70.19, 142.34 107.46 1.41 51
7 09/29/2023 15:07:01 70.11, -50.19 72.48 09/29/2023 15:06:35 70.08, -50.18 72.45 2.73 26
8 09/29/2023 15:57:26 -69.11, 118.58 108.52 09/29/2023 15:56:20 -69.15, 116.19 108.47 95.03 66
9 10/02/2023 06:33:08 -70.18,-101.84 106.43 10/02/2023 06:33:34 -70.17,-101.80 106.44 2.15 26
10 10/02/2023 07:23:51 70.03, 65.70 73.44 10/02/2023 07:23:01 70.05, 65.68 73.46 2.37 50
11 10/04/2023 21:59:18 70.33,-153.60 74.75 10/04/2023 22:00:29 70.26,-153.40 74.67 10.62 71
12 10/04/2023 22:49:58 -70.12, 14.04 105.46 10/04/2023 22:50:00 -70.11, 14.01 105.48 2.05 2
13 10/04/2023 23:40:40 69.92,-178.34 74.36 10/04/2023 23:39:28 69.93,-178.59 74.37 9.64 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/23/2023
SNOs_Map_NPP_LANDSAT-9_20230923.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/23/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9