Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2023 2 28.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 02/28/2023   23:01:47   (  70.09,-169.16) 02/28/2023   23:02:46  (  70.10,-169.24)    3.02                59
 02/28/2023   23:52:29   ( -70.00,  -1.71) 02/28/2023   23:52:16  ( -69.98,  -1.77)    2.71                13
 03/01/2023   00:43:02   (  69.30, 166.62) 03/01/2023   00:41:53  (  69.33, 164.98)   64.39                69
 03/03/2023   15:18:42   (  70.10, -53.42) 03/03/2023   15:19:14  (  70.08, -53.39)    3.11                32
 03/03/2023   16:09:23   ( -69.96, 114.12) 03/03/2023   16:08:44  ( -69.97, 114.09)    1.44                39
 03/06/2023   06:44:59   ( -70.55,-105.67) 03/06/2023   06:46:09  ( -70.45,-104.61)   41.00                70
 03/06/2023   07:35:35   (  70.03,  62.46) 03/06/2023   07:35:42  (  70.01,  62.40)    2.94                 7
 03/06/2023   08:26:17   ( -69.93,-130.07) 03/06/2023   08:25:11  ( -69.96,-130.04)    3.30                66
 03/08/2023   23:01:45   ( -70.12,  10.78) 03/08/2023   23:02:41  ( -70.12,  10.80)    0.75                56
 03/08/2023   23:52:29   (  70.01, 178.25) 03/08/2023   23:52:08  (  70.00, 178.28)    1.71                21
 03/09/2023   00:42:58   ( -69.23, -13.29) 03/09/2023   00:41:49  ( -69.29, -15.05)   69.85                69
 03/11/2023   15:18:37   ( -70.07, 126.63) 03/11/2023   15:19:06  ( -70.07, 126.62)    0.44                29
 03/11/2023   16:09:21   (  69.96, -65.90) 03/11/2023   16:08:33  (  69.95, -65.90)    1.60                48