Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 18.  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   (  70.16,  74.91) 03/19/2025   06:45:55  (  70.14,  74.96)    2.71                23
 03/19/2025   07:36:13   ( -70.01,-117.55) 03/19/2025   07:35:25  ( -70.02,-117.58)    1.43                48
 03/21/2025   22:11:41   ( -70.23,  23.27) 03/21/2025   22:12:52  ( -70.23,  23.34)    2.69                71
 03/21/2025   23:02:24   (  70.07,-169.19) 03/21/2025   23:02:20  (  70.06,-169.25)    2.52                 4
 03/21/2025   23:53:04   ( -69.86,  -1.56) 03/21/2025   23:51:51  ( -69.89,  -1.85)   11.81                73
 03/24/2025   14:28:33   ( -70.15, 139.16) 03/24/2025   14:29:16  ( -70.15, 139.13)    1.18                43
 03/24/2025   15:19:17   (  70.06, -53.39) 03/24/2025   15:18:43  (  70.04, -53.39)    2.13                34
 03/27/2025   05:54:51   (  70.68,  86.77) 03/27/2025   05:56:01  (  70.55,  87.99)   47.24                70
 03/27/2025   06:45:24   ( -70.10,-104.98) 03/27/2025   06:45:37  ( -70.11,-105.01)    2.27                13
 03/27/2025   07:36:08   (  70.01,  62.46) 03/27/2025   07:35:04  (  70.00,  62.47)    1.01                64
 03/29/2025   22:11:34   (  70.18,-156.65) 03/29/2025   22:12:28  (  70.18,-156.64)    0.26                54
 03/29/2025   23:02:16   ( -70.06,  10.85) 03/29/2025   23:01:58  ( -70.07,  10.83)    1.12                18