Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 23.  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)
 03/24/2025   14:28:33   ( -70.18, 139.11) 03/24/2025   14:29:26  ( -70.16, 139.10)    2.13                53
 03/24/2025   15:19:17   (  70.08, -53.42) 03/24/2025   15:18:53  (  70.06, -53.40)    2.56                24
 03/24/2025   16:09:44   ( -69.19, 115.20) 03/24/2025   16:08:36  ( -69.23, 113.11)   82.74                68
 03/27/2025   06:45:25   ( -70.14,-105.04) 03/27/2025   06:45:55  ( -70.13,-105.06)    0.91                30
 03/27/2025   07:36:09   (  70.04,  62.41) 03/27/2025   07:35:22  (  70.02,  62.43)    2.23                47
 03/29/2025   22:11:38   (  70.44,-157.05) 03/29/2025   22:12:49  (  70.34,-156.51)   23.05                71
 03/29/2025   23:02:16   ( -70.12,  10.77) 03/29/2025   23:02:21  ( -70.12,  10.81)    1.73                 5
 03/29/2025   23:53:00   (  70.03, 178.21) 03/29/2025   23:51:48  (  70.01, 178.29)    3.62                72
 04/01/2025   14:28:25   (  70.18, -40.87) 04/01/2025   14:29:17  (  70.19, -40.84)    0.93                52
 04/01/2025   15:19:07   ( -70.06, 126.63) 04/01/2025   15:18:47  ( -70.08, 126.64)    1.92                20
 04/01/2025   16:09:35   (  69.13, -64.70) 04/01/2025   16:08:28  (  69.19, -66.93)   88.28                67
 04/04/2025   06:45:16   (  70.16,  74.95) 04/04/2025   06:45:41  (  70.16,  75.02)    2.52                25
 04/04/2025   07:35:58   ( -70.03,-117.54) 04/04/2025   07:35:11  ( -70.06,-117.49)    3.18                47