Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 6 13.  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)
 06/15/2021   14:41:44   (  70.14, -43.95) 06/15/2021   14:40:40  (  70.13, -43.99)    2.01                64
 06/15/2021   15:31:14   ( -70.03, 123.52) 06/15/2021   15:31:22  ( -70.03, 123.48)    1.54                 8
 06/15/2021   16:20:49   (  69.49, -69.59) 06/15/2021   16:21:58  (  69.50, -68.42)   45.53                69
 06/18/2021   06:58:15   (  70.08,  71.84) 06/18/2021   06:57:37  (  70.10,  71.82)    2.27                38
 06/18/2021   07:47:45   ( -69.97,-120.69) 06/18/2021   07:48:18  ( -69.95,-120.63)    3.08                33
 06/20/2021   22:25:09   ( -70.61,  20.85) 06/20/2021   22:23:59  ( -70.71,  19.32)   57.56                70
 06/20/2021   23:14:45   (  70.02,-172.37) 06/20/2021   23:14:32  (  70.02,-172.30)    3.04                13
 06/21/2021   00:04:15   ( -69.91,  -4.89) 06/21/2021   00:05:14  ( -69.92,  -4.83)    2.97                59
 06/23/2021   14:41:48   ( -70.11, 135.99) 06/23/2021   14:40:45  ( -70.11, 136.03)    1.42                63
 06/23/2021   15:31:15   (  70.00, -56.51) 06/23/2021   15:31:29  (  70.00, -56.50)    0.56                14
 06/23/2021   16:20:53   ( -69.46, 110.37) 06/23/2021   16:22:03  ( -69.47, 111.60)   47.88                70
 06/26/2021   06:58:18   ( -70.09,-108.15) 06/26/2021   06:57:42  ( -70.09,-108.17)    1.29                36
 06/26/2021   07:47:45   (  69.98,  59.34) 06/26/2021   07:48:26  (  69.98,  59.29)    1.79                41