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: 1/21/2023
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 01/21/2023 22:00:08 70.19,-153.56 89.99 01/21/2023 22:00:55 70.19,-153.59 89.99 1.37 47
2 01/21/2023 22:50:50 -70.09, 13.90 90.12 01/21/2023 22:50:25 -70.07, 13.88 90.13 2.50 25
3 01/24/2023 13:26:34 -71.00, 153.59 89.76 01/24/2023 13:27:41 -70.91, 155.73 89.94 78.30 67
4 01/24/2023 14:17:04 70.15, -37.74 89.34 01/24/2023 14:17:20 70.14, -37.76 89.33 1.60 16
5 01/24/2023 15:07:46 -70.06, 129.73 90.77 01/24/2023 15:06:50 -70.03, 129.71 90.79 3.29 56
6 01/27/2023 05:43:16 -70.24, -89.41 91.22 01/27/2023 05:44:17 -70.22, -89.39 91.26 2.41 61
7 01/27/2023 06:34:00 70.13, 78.07 88.66 01/27/2023 06:33:44 70.11, 78.09 88.63 2.95 16
8 01/27/2023 07:24:32 -69.51,-113.68 92.01 01/27/2023 07:23:22 -69.56,-115.04 91.90 53.20 70
9 01/29/2023 22:00:10 -70.18, 26.47 92.00 01/29/2023 22:00:39 -70.20, 26.48 91.98 2.68 29
10 01/29/2023 22:50:54 70.07,-166.06 87.89 01/29/2023 22:50:06 70.08,-166.04 87.91 1.71 48
11 02/01/2023 13:26:23 70.22, -25.15 87.33 02/01/2023 13:27:32 70.24, -25.18 87.34 2.36 69
12 02/01/2023 14:17:05 -70.12, 142.33 92.80 02/01/2023 14:17:02 -70.13, 142.30 92.78 2.03 3
13 02/01/2023 15:07:44 69.75, -49.80 86.81 02/01/2023 15:06:32 69.85, -50.46 86.95 27.32 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/21/2023
SNOs_Map_NPP_LANDSAT-9_20230121.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9