Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 21.  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)
 03/21/2025   22:11:41   ( -70.22,  23.28) 03/21/2025   22:12:52  ( -70.23,  23.34)    2.79                71
 03/21/2025   23:02:24   (  70.06,-169.17) 03/21/2025   23:02:20  (  70.07,-169.24)    3.27                 4
 03/21/2025   23:53:04   ( -69.85,  -1.54) 03/21/2025   23:51:51  ( -69.90,  -1.85)   12.65                73
 03/24/2025   14:28:32   ( -70.15, 139.17) 03/24/2025   14:29:15  ( -70.14, 139.12)    1.89                43
 03/24/2025   15:19:16   (  70.05, -53.37) 03/24/2025   15:18:42  (  70.03, -53.39)    1.60                34
 03/27/2025   05:54:51   (  70.68,  86.78) 03/27/2025   05:56:01  (  70.54,  87.97)   46.51                70
 03/27/2025   06:45:24   ( -70.09,-104.98) 03/27/2025   06:45:37  ( -70.09,-105.04)    2.39                13
 03/27/2025   07:36:08   (  70.00,  62.47) 03/27/2025   07:35:04  (  69.98,  62.45)    2.45                64
 03/29/2025   22:11:34   (  70.18,-156.65) 03/29/2025   22:12:27  (  70.20,-156.61)    2.94                53
 03/29/2025   23:02:16   ( -70.06,  10.85) 03/29/2025   23:01:57  ( -70.09,  10.86)    2.91                19
 03/29/2025   23:52:45   (  69.18, 179.45) 03/29/2025   23:51:38  (  69.20, 177.30)   84.85                67
 04/01/2025   13:37:59   ( -71.14, 150.26) 04/01/2025   13:39:05  ( -71.06, 152.96)   97.52                66
 04/01/2025   14:28:25   (  70.12, -40.77) 04/01/2025   14:28:47  (  70.13, -40.79)    1.00                22
 04/01/2025   15:19:07   ( -70.00, 126.73) 04/01/2025   15:18:17  ( -70.02, 126.68)    2.51                50