Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 4.  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)
 03/06/2021   06:58:21   ( -70.12,-108.16) 03/06/2021   06:57:19  ( -70.12,-108.17)    0.20                62
 03/06/2021   07:47:48   (  70.02,  59.34) 03/06/2021   07:48:03  (  70.00,  59.32)    2.28                15
 03/06/2021   08:37:26   ( -69.47,-133.79) 03/06/2021   08:38:36  ( -69.44,-132.53)   49.18                70
 03/08/2021   23:14:49   ( -70.10,   7.69) 03/08/2021   23:14:13  ( -70.09,   7.66)    1.79                36
 03/09/2021   00:04:16   (  70.00, 175.18) 03/09/2021   00:04:57  (  69.97, 175.15)    3.27                41
 03/11/2021   14:41:42   (  70.40, -43.63) 03/11/2021   14:40:30  (  70.46, -44.47)   32.06                72
 03/11/2021   15:31:16   ( -70.08, 123.53) 03/11/2021   15:31:06  ( -70.06, 123.48)    2.73                10
 03/11/2021   16:20:44   (  69.91, -69.05) 03/11/2021   16:21:50  (  69.94, -69.04)    3.46                66
 03/14/2021   06:58:15   (  70.09,  71.81) 03/14/2021   06:57:18  (  70.12,  71.84)    3.28                57
 03/14/2021   07:47:44   ( -70.04,-120.63) 03/14/2021   07:48:00  ( -70.03,-120.71)    3.15                16
 03/14/2021   08:37:24   (  69.21,  45.89) 03/14/2021   08:38:31  (  69.23,  47.78)   74.76                67
 03/16/2021   23:14:42   (  70.11,-172.29) 03/16/2021   23:14:12  (  70.10,-172.35)    2.64                30
 03/17/2021   00:04:13   ( -69.95,  -4.88) 03/17/2021   00:04:53  ( -69.96,  -4.82)    2.38                40