Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 3 18.  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)
 03/19/2020   06:58:13   ( -70.15,-108.15) 03/19/2020   06:57:25  ( -70.12,-108.18)    3.08                48
 03/19/2020   07:47:41   (  69.99,  59.27) 03/19/2020   07:48:09  (  70.00,  59.32)    2.12                28
 03/21/2020   22:25:00   (  70.85,-158.87) 03/21/2020   22:23:52  (  70.90,-160.98)   76.99                68
 03/21/2020   23:14:42   ( -70.08,   7.63) 03/21/2020   23:14:20  ( -70.08,   7.65)    0.89                22
 03/22/2020   00:04:09   (  69.97, 175.12) 03/22/2020   00:05:04  (  69.96, 175.14)    1.51                55
 03/24/2020   14:41:40   (  70.17, -44.00) 03/24/2020   14:40:34  (  70.19, -44.06)    3.02                66
 03/24/2020   15:31:10   ( -70.06, 123.48) 03/24/2020   15:31:15  ( -70.05, 123.47)    1.87                 5
 03/24/2020   16:20:43   (  69.62, -69.48) 03/24/2020   16:21:53  (  69.61, -68.57)   35.59                70
 03/27/2020   06:58:09   (  70.09,  71.77) 03/27/2020   06:57:28  (  70.10,  71.84)    2.87                41
 03/27/2020   07:47:39   ( -69.99,-120.74) 03/27/2020   07:48:10  ( -70.01,-120.71)    2.87                31
 03/29/2020   22:24:59   ( -70.73,  20.94) 03/29/2020   22:23:50  ( -70.82,  19.17)   65.69                69
 03/29/2020   23:14:36   (  70.07,-172.38) 03/29/2020   23:14:22  (  70.08,-172.35)    1.60                14
 03/30/2020   00:04:06   ( -69.97,  -4.89) 03/30/2020   00:05:04  ( -69.98,  -4.89)    1.35                58