Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 28.  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)
 03/30/2021   06:58:10   (  70.14,  71.85) 03/30/2021   06:57:14  (  70.15,  71.81)    1.35                56
 03/30/2021   07:47:40   ( -70.03,-120.68) 03/30/2021   07:47:55  ( -70.02,-120.67)    1.47                15
 03/30/2021   08:37:19   (  69.26,  45.92) 03/30/2021   08:38:27  (  69.25,  47.76)   72.37                68
 04/01/2021   23:14:38   (  70.10,-172.33) 04/01/2021   23:14:06  (  70.08,-172.31)    2.11                32
 04/02/2021   00:04:08   ( -70.00,  -4.85) 04/02/2021   00:04:48  ( -70.00,  -4.87)    1.38                40
 04/04/2021   14:41:34   ( -70.50, 136.47) 04/04/2021   14:40:23  ( -70.57, 135.40)   40.46                71
 04/04/2021   15:31:07   (  70.06, -56.52) 04/04/2021   15:31:00  (  70.08, -56.53)    2.30                 7
 04/04/2021   16:20:37   ( -69.95, 110.97) 04/04/2021   16:21:41  ( -69.94, 111.00)    1.71                64
 04/07/2021   06:58:09   ( -70.12,-108.20) 04/07/2021   06:57:09  ( -70.14,-108.15)    2.47                60
 04/07/2021   07:47:36   (  70.01,  59.28) 04/07/2021   07:47:53  (  70.02,  59.34)    2.55                17
 04/07/2021   08:37:16   ( -69.35,-133.97) 04/07/2021   08:38:24  ( -69.35,-132.36)   62.95                68
 04/09/2021   23:14:37   ( -70.12,   7.68) 04/09/2021   23:14:03  ( -70.13,   7.63)    2.24                34
 04/10/2021   00:04:04   (  70.00, 175.16) 04/10/2021   00:04:47  (  70.02, 175.11)    2.42                43