Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/28/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 03/28/2023 22:36:17 70.76,-163.88 67.60 03/28/2023 22:37:26 70.64,-162.30 67.42 59.58 69
2 03/28/2023 23:26:48 -70.10, 4.50 113.12 03/28/2023 23:27:04 -70.09, 4.53 113.13 1.52 16
3 03/29/2023 00:17:32 69.98, 171.98 66.75 03/29/2023 00:16:31 69.99, 172.03 66.76 2.03 61
4 03/31/2023 14:52:57 70.15, -47.12 65.91 03/31/2023 14:54:02 70.17, -47.11 65.92 2.04 65
5 03/31/2023 15:43:39 -70.06, 120.33 114.20 03/31/2023 15:43:32 -70.05, 120.36 114.21 1.09 7
6 03/31/2023 16:34:16 69.57, -71.64 65.28 03/31/2023 16:33:05 69.62, -72.60 65.36 37.51 71
7 04/03/2023 07:09:48 70.13, 68.69 64.85 04/03/2023 07:10:29 70.14, 68.73 64.85 2.17 41
8 04/03/2023 08:00:30 -70.03,-123.85 115.27 04/03/2023 07:59:59 -70.03,-123.79 115.27 2.27 31
9 04/05/2023 22:36:09 -70.96, 15.84 115.30 04/05/2023 22:37:16 -70.89, 18.09 115.43 82.22 67
10 04/05/2023 23:26:38 70.07,-175.43 63.76 04/05/2023 23:26:56 70.07,-175.48 63.76 1.86 18
11 04/06/2023 00:17:20 -69.97, -7.97 116.36 04/06/2023 00:16:26 -69.96, -8.00 116.36 1.13 54
12 04/08/2023 14:52:44 -70.17, 132.88 117.13 04/08/2023 14:53:53 -70.19, 132.93 117.13 2.51 69
13 04/08/2023 15:43:28 70.07, -59.66 62.75 04/08/2023 15:43:20 70.07, -59.59 62.75 2.64 8
14 04/08/2023 16:34:06 -69.76, 108.12 117.58 04/08/2023 16:32:53 -69.80, 107.67 117.53 17.93 73

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 3/28/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230328.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 03/28/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-8