Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 6 5.  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)
 06/07/2025   05:54:47   ( -70.17, -92.49) 06/07/2025   05:55:59  ( -70.16, -92.56)    3.03                72
 06/07/2025   06:45:32   (  70.08,  74.97) 06/07/2025   06:45:26  (  70.06,  74.95)    1.95                 6
 06/07/2025   07:36:10   ( -69.81,-117.31) 06/07/2025   07:34:57  ( -69.89,-117.66)   16.27                73
 06/09/2025   22:11:43   ( -70.17,  23.28) 06/09/2025   22:12:25  ( -70.17,  23.35)    2.59                42
 06/09/2025   23:02:27   (  70.02,-169.19) 06/09/2025   23:01:53  (  70.01,-169.23)    2.23                34
 06/12/2025   13:38:07   (  70.71, -29.14) 06/12/2025   13:39:16  (  70.59, -27.77)   52.14                69
 06/12/2025   14:28:39   ( -70.12, 139.12) 06/12/2025   14:28:53  ( -70.10, 139.14)    2.84                14
 06/12/2025   15:19:23   (  69.97, -53.36) 06/12/2025   15:18:20  (  69.99, -53.37)    1.54                63
 06/15/2025   05:54:53   (  70.14,  87.53) 06/15/2025   05:55:50  (  70.16,  87.50)    2.53                57
 06/15/2025   06:45:35   ( -70.08,-105.05) 06/15/2025   06:45:20  ( -70.06,-105.02)    2.68                15
 06/15/2025   07:36:07   (  69.30,  63.40) 06/15/2025   07:34:58  (  69.34,  61.64)   69.17                69
 06/17/2025   22:11:49   (  70.11,-156.66) 06/17/2025   22:12:17  (  70.10,-156.69)    1.79                28
 06/17/2025   23:02:30   ( -69.99,  10.85) 06/17/2025   23:01:47  ( -69.99,  10.79)    2.17                43