Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 29.  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   (  70.11,  71.81) 03/30/2021   06:57:13  (  70.12,  71.85)    1.90                57
 03/30/2021   07:47:39   ( -70.06,-120.64) 03/30/2021   07:47:55  ( -70.04,-120.71)    2.98                16
 03/30/2021   08:37:19   (  69.23,  45.89) 03/30/2021   08:38:26  (  69.22,  47.80)   75.33                67
 04/01/2021   23:14:38   (  70.13,-172.29) 04/01/2021   23:14:07  (  70.11,-172.36)    3.28                31
 04/02/2021   00:04:09   ( -69.97,  -4.89) 04/02/2021   00:04:48  ( -69.98,  -4.84)    2.42                39
 04/04/2021   14:41:35   ( -70.47, 136.43) 04/04/2021   14:40:23  ( -70.54, 135.44)   37.72                72
 04/04/2021   15:31:08   (  70.03, -56.56) 04/04/2021   15:31:00  (  70.05, -56.49)    3.32                 8
 04/04/2021   16:20:37   ( -69.98, 111.01) 04/04/2021   16:21:42  ( -69.97, 110.95)    2.49                65
 04/07/2021   06:58:08   ( -70.15,-108.15) 04/07/2021   06:57:09  ( -70.17,-108.20)    2.26                59
 04/07/2021   07:47:35   (  70.04,  59.33) 04/07/2021   07:47:53  (  70.05,  59.29)    1.80                18
 04/07/2021   08:37:15   ( -69.39,-133.93) 04/07/2021   08:38:24  ( -69.38,-132.41)   59.63                69
 04/09/2021   23:14:37   ( -70.10,   7.65) 04/09/2021   23:14:02  ( -70.11,   7.67)    1.16                35
 04/10/2021   00:04:04   (  69.98, 175.13) 04/10/2021   00:04:46  (  69.99, 175.15)    1.53                42