Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 5 31.  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)
 06/01/2025   22:11:39   (  70.16,-156.70) 06/01/2025   22:12:29  (  70.14,-156.72)    3.08                50
 06/01/2025   23:02:20   ( -70.05,  10.80) 06/01/2025   23:01:58  ( -70.08,  10.82)    2.92                22
 06/01/2025   23:52:47   (  69.00, 179.63) 06/01/2025   23:51:41  (  69.09, 177.13)   99.85                66
 06/04/2025   14:28:35   (  70.09, -40.83) 06/04/2025   14:28:58  (  70.09, -40.90)    2.87                23
 06/04/2025   15:19:17   ( -70.03, 126.59) 06/04/2025   15:18:27  ( -70.03, 126.65)    2.19                50
 06/07/2025   05:54:47   ( -70.17, -92.49) 06/07/2025   05:55:59  ( -70.18, -92.52)    1.61                72
 06/07/2025   06:45:32   (  70.08,  74.95) 06/07/2025   06:45:26  (  70.08,  74.97)    0.81                 6
 06/07/2025   07:36:10   ( -69.81,-117.31) 06/07/2025   07:34:58  ( -69.86,-117.71)   16.14                72
 06/09/2025   22:11:44   ( -70.17,  23.28) 06/09/2025   22:12:27  ( -70.15,  23.32)    2.28                43
 06/09/2025   23:02:28   (  70.02,-169.20) 06/09/2025   23:01:54  (  70.04,-169.19)    2.12                34
 06/12/2025   13:38:07   (  70.71, -29.14) 06/12/2025   13:39:16  (  70.64, -27.69)   53.66                69
 06/12/2025   14:28:39   ( -70.11, 139.13) 06/12/2025   14:28:54  ( -70.10, 139.14)    1.60                15
 06/12/2025   15:19:23   (  69.97, -53.35) 06/12/2025   15:18:21  (  69.99, -53.37)    1.69                62