Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 31.  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)
 04/01/2021   23:14:38   (  70.11,-172.32) 04/01/2021   23:14:06  (  70.08,-172.31)    3.38                32
 04/02/2021   00:04:08   ( -70.00,  -4.85) 04/02/2021   00:04:48  ( -70.00,  -4.87)    1.24                40
 04/04/2021   14:41:34   ( -70.50, 136.48) 04/04/2021   14:40:23  ( -70.56, 135.40)   40.59                71
 04/04/2021   15:31:07   (  70.07, -56.51) 04/04/2021   15:31:00  (  70.07, -56.52)    0.82                 7
 04/04/2021   16:20:37   ( -69.96, 110.97) 04/04/2021   16:21:41  ( -69.94, 111.00)    2.11                64
 04/07/2021   06:58:09   ( -70.13,-108.18) 04/07/2021   06:57:09  ( -70.14,-108.15)    1.39                60
 04/07/2021   07:47:36   (  70.02,  59.30) 04/07/2021   07:47:53  (  70.02,  59.34)    1.52                17
 04/07/2021   08:37:16   ( -69.37,-133.96) 04/07/2021   08:38:25  ( -69.41,-132.44)   59.57                69
 04/09/2021   23:14:37   ( -70.14,   7.70) 04/09/2021   23:14:03  ( -70.13,   7.63)    2.77                34
 04/10/2021   00:04:04   (  70.02, 175.18) 04/10/2021   00:04:47  (  70.02, 175.12)    2.63                43
 04/12/2021   14:41:31   (  70.40, -43.67) 04/12/2021   14:40:19  (  70.49, -44.46)   30.89                72
 04/12/2021   15:31:05   ( -70.08, 123.50) 04/12/2021   15:30:55  ( -70.08, 123.49)    0.72                10
 04/12/2021   16:20:32   (  69.97, -69.02) 04/12/2021   16:21:39  (  69.96, -69.03)    0.40                67