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: 4/5/2023
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 04/06/2023 13:27:10 70.28, -25.23 63.75 04/06/2023 13:27:38 70.29, -25.28 63.75 2.07 28
2 04/06/2023 14:17:52 -70.20, 142.21 116.36 04/06/2023 14:17:08 -70.18, 142.19 116.38 2.97 44
3 04/09/2023 04:53:26 -70.55, -77.20 116.97 04/09/2023 04:54:37 -70.48, -76.77 117.06 17.85 71
4 04/09/2023 05:44:07 70.27, 90.55 62.73 04/09/2023 05:44:06 70.27, 90.57 62.72 0.71 1
5 04/09/2023 06:34:48 -70.14,-101.92 117.43 04/09/2023 06:33:36 -70.16,-101.96 117.40 2.93 72
6 04/11/2023 21:10:19 -70.34, 38.91 118.19 04/11/2023 21:11:07 -70.32, 38.88 118.22 2.76 48
7 04/11/2023 22:01:03 70.22,-153.60 61.68 04/11/2023 22:00:34 70.21,-153.64 61.67 2.04 29
8 04/14/2023 12:36:45 71.07, -13.83 61.61 04/14/2023 12:37:53 70.94, -11.95 61.43 69.89 68
9 04/14/2023 13:27:14 -70.30, 154.75 119.21 04/14/2023 13:27:33 -70.28, 154.71 119.23 2.54 19
10 04/14/2023 14:17:58 70.18, -37.76 60.66 04/14/2023 14:17:00 70.17, -37.81 60.65 2.45 58
11 04/17/2023 04:53:28 70.36, 103.11 59.91 04/17/2023 04:54:29 70.37, 103.08 59.91 1.16 61
12 04/17/2023 05:44:10 -70.27, -89.42 120.20 04/17/2023 05:43:59 -70.26, -89.44 120.21 0.83 11
13 04/17/2023 06:34:44 69.63, 78.86 59.13 04/17/2023 06:33:34 69.71, 77.43 59.25 56.01 70

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/5/2023
SNOs_Map_NPP_LANDSAT-9_20230405.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/05/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9