Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 16.  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)
 09/16/2024   06:45:20   ( -70.14,-105.02) 09/16/2024   06:45:53  ( -70.13,-104.99)    1.32                33
 09/16/2024   07:36:04   (  70.01,  62.49) 09/16/2024   07:35:20  (  70.03,  62.50)    2.39                44
 09/18/2024   22:11:39   (  70.24,-156.75) 09/18/2024   22:12:50  (  70.22,-156.61)    5.74                71
 09/18/2024   23:02:20   ( -70.11,  10.78) 09/18/2024   23:02:20  ( -70.11,  10.86)    2.97                 0
 09/18/2024   23:53:02   (  69.87, 178.45) 09/18/2024   23:51:49  (  69.89, 178.20)    9.86                73
 09/21/2024   14:28:38   (  70.13, -40.82) 09/21/2024   14:29:17  (  70.15, -40.81)    2.56                39
 09/21/2024   15:19:20   ( -70.05, 126.63) 09/21/2024   15:18:47  ( -70.04, 126.67)    1.65                33
 09/24/2024   05:55:00   ( -70.54, -93.01) 09/24/2024   05:56:11  ( -70.44, -92.13)   34.62                71
 09/24/2024   06:45:38   (  70.10,  74.99) 09/24/2024   06:45:42  (  70.11,  75.03)    2.08                 4
 09/24/2024   07:36:20   ( -70.01,-117.56) 09/24/2024   07:35:12  ( -70.00,-117.49)    3.19                68
 09/26/2024   22:11:53   ( -70.16,  23.34) 09/26/2024   22:12:39  ( -70.15,  23.35)    1.74                46
 09/26/2024   23:02:37   (  70.03,-169.16) 09/26/2024   23:02:06  (  70.03,-169.17)    0.97                31
 09/29/2024   13:38:15   (  70.53, -28.79) 09/29/2024   13:39:26  (  70.41, -27.98)   32.89                71
 09/29/2024   14:28:50   ( -70.07, 139.24) 09/29/2024   14:29:00  ( -70.09, 139.19)    2.68                10
 09/29/2024   15:19:35   (  70.00, -53.34) 09/29/2024   15:18:27  (  69.96, -53.34)    3.69                68