Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 19.  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   (  70.13,  74.95) 03/19/2025   06:45:56  (  70.11,  74.91)    2.55                24
 03/19/2025   07:36:14   ( -70.04,-117.59) 03/19/2025   07:35:25  ( -70.04,-117.54)    2.14                49
 03/21/2025   22:11:40   ( -70.20,  23.31) 03/21/2025   22:12:52  ( -70.20,  23.29)    0.58                72
 03/21/2025   23:02:24   (  70.10,-169.22) 03/21/2025   23:02:19  (  70.09,-169.21)    0.75                 5
 03/21/2025   23:53:03   ( -69.84,  -1.52) 03/21/2025   23:51:50  ( -69.92,  -1.82)   14.52                73
 03/24/2025   14:28:33   ( -70.18, 139.11) 03/24/2025   14:29:15  ( -70.17, 139.16)    1.93                42
 03/24/2025   15:19:17   (  70.08, -53.43) 03/24/2025   15:18:42  (  70.06, -53.35)    3.65                35
 03/27/2025   05:54:51   (  70.66,  86.82) 03/27/2025   05:56:01  (  70.58,  88.03)   45.66                70
 03/27/2025   06:45:25   ( -70.12,-105.02) 03/27/2025   06:45:37  ( -70.14,-104.98)    2.37                12
 03/27/2025   07:36:08   (  69.98,  62.50) 03/27/2025   07:35:05  (  69.97,  62.43)    3.18                63
 03/29/2025   22:11:34   (  70.15,-156.61) 03/29/2025   22:12:29  (  70.15,-156.68)    2.80                55
 03/29/2025   23:02:17   ( -70.09,  10.81) 03/29/2025   23:01:58  ( -70.10,  10.87)    2.52                19
 03/29/2025   23:52:46   (  69.21, 179.41) 03/29/2025   23:51:38  (  69.26, 177.38)   80.30                68
 04/01/2025   14:28:25   (  70.14, -40.81) 04/01/2025   14:28:47  (  70.15, -40.76)    2.07                22
 04/01/2025   15:19:07   ( -70.02, 126.69) 04/01/2025   15:18:17  ( -70.04, 126.71)    2.67                50