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: 1/19/2023
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 01/20/2023 15:57:05 -70.33, 116.78 89.58 01/20/2023 15:57:46 -70.35, 116.78 89.56 2.76 41
2 01/20/2023 16:47:49 70.21, -75.74 90.30 01/20/2023 16:47:10 70.24, -75.72 90.33 2.74 39
3 01/23/2023 04:50:59 -70.34, -76.72 90.13 01/23/2023 04:51:47 -70.32, -76.78 90.15 2.91 48
4 01/23/2023 05:41:43 70.22, 90.77 89.74 01/23/2023 05:41:10 70.26, 90.78 89.78 3.49 33
5 01/25/2023 17:44:53 -70.36, 89.77 90.72 01/25/2023 17:45:46 -70.36, 89.75 90.73 0.86 53
6 01/25/2023 18:35:37 70.25,-102.75 89.16 01/25/2023 18:35:10 70.23,-102.78 89.15 2.47 27
7 01/28/2023 06:38:47 -70.39,-103.76 91.32 01/28/2023 06:39:44 -70.40,-103.71 91.33 2.37 57
8 01/28/2023 07:29:30 70.28, 63.71 88.56 01/28/2023 07:29:07 70.27, 63.76 88.54 2.68 23
9 01/28/2023 08:19:55 -69.29,-127.50 92.50 01/28/2023 08:18:48 -69.32,-129.88 92.36 93.69 67
10 01/30/2023 19:32:39 -70.38, 62.77 92.01 01/30/2023 19:33:41 -70.40, 62.78 92.00 1.85 62
11 01/30/2023 20:23:23 70.28,-129.76 87.88 01/30/2023 20:23:05 70.26,-129.76 87.86 2.47 18

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 1/19/2023
SNOs_Map_NOAA-21_TERRA_20230119.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 01/19/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA