Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 9 1.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/03/2021   14:42:09   (  70.09, -44.03) 09/03/2021   14:41:33  (  70.10, -44.08)    2.82                36
 09/03/2021   15:31:39   ( -69.98, 123.45) 09/03/2021   15:32:14  ( -69.96, 123.45)    1.70                35
 09/06/2021   06:09:04   ( -70.62, -95.01) 09/06/2021   06:07:54  ( -70.67, -96.52)   55.80                70
 09/06/2021   06:58:40   (  70.02,  71.76) 09/06/2021   06:58:28  (  70.03,  71.80)    1.72                12
 09/06/2021   07:48:10   ( -69.91,-120.76) 09/06/2021   07:49:10  ( -69.94,-120.75)    2.57                60
 09/08/2021   22:25:43   ( -70.12,  20.13) 09/08/2021   22:24:40  ( -70.12,  20.11)    0.97                63
 09/08/2021   23:15:10   (  70.01,-172.38) 09/08/2021   23:15:24  (  70.01,-172.41)    1.31                14
 09/09/2021   00:04:48   ( -69.46,  -5.50) 09/09/2021   00:05:58  ( -69.49,  -4.32)   45.91                70
 09/11/2021   14:42:12   ( -70.10, 135.99) 09/11/2021   14:41:35  ( -70.10, 135.91)    2.84                37
 09/11/2021   15:31:40   (  69.93, -56.61) 09/11/2021   15:32:18  (  69.95, -56.54)    3.12                38
 09/14/2021   06:09:06   (  70.50,  84.82) 09/14/2021   06:07:56  (  70.56,  83.64)   44.20                70
 09/14/2021   06:58:43   ( -70.02,-108.24) 09/14/2021   06:58:30  ( -70.04,-108.21)    2.01                13
 09/14/2021   07:48:10   (  69.91,  59.24) 09/14/2021   07:49:14  (  69.93,  59.25)    3.11                64