Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 2 21.  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)
 02/21/2020   14:41:45   (  70.63, -43.30) 02/21/2020   14:40:35  (  70.67, -44.78)   54.78                70
 02/21/2020   15:31:23   ( -70.08, 123.53) 02/21/2020   15:31:07  ( -70.06, 123.50)    2.30                16
 02/21/2020   16:20:51   (  69.92, -69.05) 02/21/2020   16:21:51  (  69.94, -69.00)    2.43                60
 02/24/2020   06:58:22   (  70.16,  71.89) 02/24/2020   06:57:21  (  70.14,  71.83)    3.20                61
 02/24/2020   07:47:53   ( -69.99,-120.71) 02/24/2020   07:48:02  ( -70.00,-120.64)    2.76                 9
 02/24/2020   08:37:28   (  69.45,  46.18) 02/24/2020   08:38:37  (  69.40,  47.55)   53.57                69
 02/26/2020   23:14:52   (  70.07,-172.36) 02/26/2020   23:14:16  (  70.08,-172.32)    2.27                36
 02/27/2020   00:04:21   ( -70.02,  -4.80) 02/27/2020   00:04:58  ( -70.00,  -4.87)    3.38                37
 02/29/2020   14:41:46   ( -70.58, 136.61) 02/29/2020   14:40:36  ( -70.62, 135.30)   48.84                70
 02/29/2020   15:31:21   (  70.03, -56.54) 02/29/2020   15:31:11  (  70.03, -56.47)    2.45                10
 02/29/2020   16:20:51   ( -69.93, 110.95) 02/29/2020   16:21:53  ( -69.94, 110.98)    1.96                62
 03/03/2020   06:58:21   ( -70.16,-108.12) 03/03/2020   06:57:22  ( -70.14,-108.19)    3.03                59
 03/03/2020   07:47:48   (  70.05,  59.36) 03/03/2020   07:48:06  (  70.03,  59.29)    3.18                18
 03/03/2020   08:37:28   ( -69.39,-133.90) 03/03/2020   08:38:37  ( -69.36,-132.40)   58.98                69
 03/05/2020   23:14:51   ( -70.06,   7.62) 03/05/2020   23:14:17  ( -70.09,   7.66)    3.32                34
 03/06/2020   00:04:17   (  70.00, 175.18) 03/06/2020   00:05:01  (  69.98, 175.14)    3.23                44