Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2023 11 15.  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)
 11/17/2023   07:34:31   (  69.96,  62.44) 11/17/2023   07:35:40  (  69.98,  62.43)    1.83                69
 11/17/2023   08:25:13   ( -69.86,-130.09) 11/17/2023   08:25:10  ( -69.86,-130.09)    0.07                 3
 11/17/2023   09:15:52   (  69.49,  37.77) 11/17/2023   09:14:40  (  69.59,  37.18)   25.92                72
 11/19/2023   23:51:27   (  69.91, 178.27) 11/19/2023   23:52:08  (  69.89, 178.20)    3.44                41
 11/20/2023   00:42:09   ( -69.81, -14.26) 11/20/2023   00:41:37  ( -69.84, -14.24)    2.97                32
 11/22/2023   15:17:51   ( -70.56, 125.72) 11/22/2023   15:19:00  ( -70.44, 127.23)   57.57                69
 11/22/2023   16:08:24   (  69.88, -65.91) 11/22/2023   16:08:35  (  69.89, -65.91)    1.79                11
 11/22/2023   16:59:06   ( -69.77, 101.56) 11/22/2023   16:58:05  ( -69.78, 101.57)    1.44                61
 11/25/2023   07:34:37   ( -69.95,-117.57) 11/25/2023   07:35:35  ( -69.97,-117.55)    2.84                58
 11/25/2023   08:25:21   (  69.85,  49.89) 11/25/2023   08:25:02  (  69.86,  49.94)    2.20                19
 11/25/2023   09:15:52   ( -69.16,-141.79) 11/25/2023   09:14:42  ( -69.20,-143.31)   60.38                70
 11/27/2023   23:51:34   ( -69.93,  -1.77) 11/27/2023   23:52:02  ( -69.91,  -1.74)    1.75                28
 11/28/2023   00:42:17   (  69.77, 165.77) 11/28/2023   00:41:29  (  69.80, 165.75)    2.87                48