Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2022 4 19.  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   22:25:15   ( -70.18,  20.20) 04/20/2022   22:24:02  ( -70.17,  20.24)    1.63                73
 04/20/2022   23:14:41   (  70.08,-172.30) 04/20/2022   23:14:45  (  70.05,-172.27)    3.21                 4
 04/21/2022   00:04:13   ( -69.86,  -4.98) 04/21/2022   00:05:25  ( -69.86,  -4.67)   11.97                72
 04/23/2022   14:41:43   ( -70.13, 136.02) 04/23/2022   14:40:54  ( -70.13, 136.08)    2.33                49
 04/23/2022   15:31:10   (  70.02, -56.49) 04/23/2022   15:31:38  (  70.01, -56.43)    2.72                28
 04/26/2022   06:08:28   (  70.94,  85.48) 04/26/2022   06:07:21  (  71.02,  83.11)   86.59                67
 04/26/2022   06:58:11   ( -70.12,-108.10) 04/26/2022   06:57:48  ( -70.14,-108.16)    3.17                23
 04/26/2022   07:47:38   (  70.01,  59.39) 04/26/2022   07:48:32  (  70.03,  59.32)    2.95                54
 04/28/2022   22:25:09   (  70.20,-159.73) 04/28/2022   22:23:59  (  70.20,-159.79)    2.19                70
 04/28/2022   23:14:40   ( -70.04,   7.67) 04/28/2022   23:14:40  ( -70.05,   7.75)    3.24                 0
 04/29/2022   00:04:09   (  69.82, 175.01) 04/29/2022   00:05:21  (  69.78, 175.47)   18.08                72
 05/01/2022   14:41:37   (  70.16, -43.90) 05/01/2022   14:40:52  (  70.17, -43.97)    3.15                45
 05/01/2022   15:31:06   ( -70.06, 123.59) 05/01/2022   15:31:32  ( -70.03, 123.57)    3.39                26