Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2022 4 20.  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)
 04/20/2022   22:25:14   ( -70.19,  20.21) 04/20/2022   22:24:01  ( -70.17,  20.25)    2.43                73
 04/20/2022   23:14:41   (  70.08,-172.29) 04/20/2022   23:14:46  (  70.10,-172.34)    2.41                 5
 04/21/2022   00:04:13   ( -69.86,  -4.97) 04/21/2022   00:05:25  ( -69.86,  -4.66)   11.94                72
 04/23/2022   14:41:43   ( -70.14, 136.03) 04/23/2022   14:40:54  ( -70.13, 136.09)    2.53                49
 04/23/2022   15:31:10   (  70.03, -56.48) 04/23/2022   15:31:39  (  70.06, -56.50)    3.29                29
 04/26/2022   06:08:28   (  70.95,  85.49) 04/26/2022   06:07:21  (  71.02,  83.11)   86.76                67
 04/26/2022   06:58:11   ( -70.13,-108.09) 04/26/2022   06:57:48  ( -70.14,-108.16)    2.95                23
 04/26/2022   07:47:38   (  70.02,  59.39) 04/26/2022   07:48:32  (  70.03,  59.33)    2.75                54
 04/28/2022   22:25:09   (  70.21,-159.72) 04/28/2022   22:23:59  (  70.20,-159.79)    2.74                70
 04/28/2022   23:14:40   ( -70.05,   7.68) 04/28/2022   23:14:40  ( -70.06,   7.75)    2.68                 0
 04/29/2022   00:04:09   (  69.82, 175.02) 04/29/2022   00:05:21  (  69.79, 175.46)   17.75                72
 05/01/2022   14:41:37   (  70.11, -43.97) 05/01/2022   14:40:50  (  70.13, -43.90)    3.20                47
 05/01/2022   15:31:07   ( -70.01, 123.52) 05/01/2022   15:31:32  ( -70.03, 123.56)    3.28                25