Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 17.  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)
 03/19/2025   06:45:32   (  70.12,  74.96) 03/19/2025   06:45:56  (  70.12,  74.93)    1.21                24
 03/19/2025   07:36:14   ( -70.03,-117.58) 03/19/2025   07:35:26  ( -70.00,-117.60)    2.52                48
 03/21/2025   22:11:41   ( -70.24,  23.25) 03/21/2025   22:12:52  ( -70.22,  23.32)    3.33                71
 03/21/2025   23:02:24   (  70.08,-169.20) 03/21/2025   23:02:19  (  70.11,-169.19)    3.35                 5
 03/21/2025   23:53:04   ( -69.87,  -1.57) 03/21/2025   23:51:50  ( -69.94,  -1.79)   11.15                74
 03/24/2025   14:28:33   ( -70.15, 139.15) 03/24/2025   14:29:16  ( -70.15, 139.13)    0.92                43
 03/24/2025   15:19:17   (  70.06, -53.39) 03/24/2025   15:18:43  (  70.04, -53.39)    2.20                34
 03/27/2025   05:54:52   (  70.68,  86.79) 03/27/2025   05:56:02  (  70.57,  88.02)   46.84                70
 03/27/2025   06:45:26   ( -70.14,-105.05) 03/27/2025   06:45:38  ( -70.13,-104.99)    2.36                12
 03/27/2025   07:36:09   (  70.00,  62.47) 03/27/2025   07:35:05  (  70.02,  62.49)    1.92                64
 03/29/2025   22:11:35   (  70.16,-156.62) 03/29/2025   22:12:30  (  70.16,-156.67)    2.17                55
 03/29/2025   23:02:17   ( -70.04,  10.88) 03/29/2025   23:02:00  ( -70.05,  10.80)    3.35                17