Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 6 26.  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)
 06/28/2025   14:28:48   ( -70.11, 139.09) 06/28/2025   14:29:16  ( -70.11, 139.11)    0.65                28
 06/28/2025   15:19:33   (  70.02, -53.46) 06/28/2025   15:18:43  (  70.01, -53.39)    2.95                50
 07/01/2025   05:55:04   (  70.26,  87.31) 07/01/2025   05:56:16  (  70.22,  87.50)    8.74                72
 07/01/2025   06:45:44   ( -70.08,-105.10) 07/01/2025   06:45:47  ( -70.05,-105.10)    3.33                 3
 07/01/2025   07:36:27   (  69.89,  62.49) 07/01/2025   07:35:15  (  69.89,  62.32)    6.65                72
 07/03/2025   22:11:58   (  70.14,-156.73) 07/03/2025   22:12:47  (  70.14,-156.73)    0.38                49
 07/03/2025   23:02:39   ( -70.01,  10.78) 07/03/2025   23:02:17  ( -70.03,  10.76)    3.30                22
 07/06/2025   14:28:53   (  70.12, -40.94) 07/06/2025   14:29:16  (  70.10, -40.90)    2.81                23
 07/06/2025   15:19:34   ( -69.98, 126.58) 07/06/2025   15:18:46  ( -70.00, 126.59)    1.84                48
 07/09/2025   05:55:06   ( -70.28, -92.73) 07/09/2025   05:56:18  ( -70.22, -92.49)   11.01                72
 07/09/2025   06:45:48   (  70.06,  74.92) 07/09/2025   06:45:46  (  70.05,  74.91)    0.80                 2
 07/09/2025   07:36:29   ( -69.91,-117.54) 07/09/2025   07:35:16  ( -69.95,-117.59)    4.71                73