Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 7 26.  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)
 07/28/2021   06:08:45   (  70.84,  85.35) 07/28/2021   06:07:37  (  70.86,  83.22)   77.80                68
 07/28/2021   06:58:28   ( -70.02,-108.23) 07/28/2021   06:58:05  ( -70.04,-108.16)    3.12                23
 07/28/2021   07:47:55   (  69.92,  59.27) 07/28/2021   07:48:49  (  69.91,  59.34)    2.72                54
 07/30/2021   22:25:28   (  70.15,-159.81) 07/30/2021   22:24:20  (  70.12,-159.84)    3.32                68
 07/30/2021   23:14:57   ( -70.04,   7.68) 07/30/2021   23:15:01  ( -70.04,   7.60)    2.92                 4
 07/31/2021   00:04:29   (  69.66, 174.79) 07/31/2021   00:05:40  (  69.65, 175.49)   27.35                71
 08/02/2021   14:41:59   (  70.05, -44.07) 08/02/2021   14:41:15  (  70.07, -44.00)    3.40                44
 08/02/2021   15:31:28   ( -70.00, 123.50) 08/02/2021   15:31:57  ( -69.98, 123.45)    3.05                29
 08/05/2021   06:08:49   ( -70.88, -94.60) 08/05/2021   06:07:42  ( -70.92, -96.91)   84.15                67
 08/05/2021   06:58:29   (  70.06,  71.82) 08/05/2021   06:58:12  (  70.07,  71.76)    3.10                17
 08/05/2021   07:47:59   ( -69.96,-120.68) 08/05/2021   07:48:53  ( -69.93,-120.71)    3.21                54
 08/07/2021   22:25:33   ( -70.12,  20.15) 08/07/2021   22:24:24  ( -70.14,  20.11)    2.63                69
 08/07/2021   23:15:00   (  70.00,-172.37) 08/07/2021   23:15:08  (  70.03,-172.40)    2.95                 8
 08/08/2021   00:04:34   ( -69.69,  -5.18) 08/08/2021   00:05:45  ( -69.67,  -4.55)   24.27                71