Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/7/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 05/09/2023 14:20:45 70.61, -39.85 53.16 05/09/2023 14:21:29 70.61, -39.88 53.16 1.27 44
2 05/09/2023 15:11:27 -70.53, 127.61 126.94 05/09/2023 15:10:54 -70.50, 127.62 126.96 2.62 33
3 05/12/2023 02:24:14 -71.58, -42.30 126.47 05/12/2023 02:25:20 -71.45, -39.63 126.68 95.17 66
4 05/12/2023 03:14:41 70.58, 126.71 52.47 05/12/2023 03:14:57 70.60, 126.72 52.49 2.35 16
5 05/12/2023 04:05:23 -70.49, -65.83 127.63 05/12/2023 04:04:22 -70.50, -65.78 127.62 2.01 61
6 05/14/2023 15:17:53 -70.68, 125.76 128.05 05/14/2023 15:19:02 -70.65, 125.74 128.09 3.23 69
7 05/14/2023 16:08:37 70.56, -66.74 51.83 05/14/2023 16:08:25 70.56, -66.74 51.82 0.44 12
8 05/14/2023 16:59:09 -69.95, 101.53 128.82 05/14/2023 16:57:59 -69.96, 100.07 128.76 55.64 70
9 05/17/2023 04:11:47 -70.61, -67.62 128.71 05/17/2023 04:12:28 -70.63, -67.68 128.70 2.87 41
10 05/17/2023 05:02:32 70.55, 99.78 51.22 05/17/2023 05:01:51 70.53, 99.84 51.20 2.92 41
11 05/19/2023 16:15:12 71.28, -69.54 51.44 05/19/2023 16:16:21 71.15, -67.92 51.26 59.75 69
12 05/19/2023 17:05:43 -70.61, 98.90 129.27 05/19/2023 17:05:54 -70.62, 98.93 129.26 2.32 11
13 05/19/2023 17:56:27 70.50, -93.62 50.61 05/19/2023 17:55:17 70.52, -93.56 50.64 3.48 70

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 5/7/2023
SNOs_Map_NOAA-21_TERRA_20230507.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 05/07/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA