Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 5 3.  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)
 05/03/2021   23:14:22   (  70.14,-172.31) 05/03/2021   23:13:57  (  70.11,-172.31)    3.17                25
 05/04/2021   00:03:52   ( -70.02,  -4.84) 05/04/2021   00:04:39  ( -70.02,  -4.86)    0.69                47
 05/06/2021   14:41:23   ( -70.20, 136.01) 05/06/2021   14:40:10  ( -70.20, 136.01)    0.25                73
 05/06/2021   15:30:50   (  70.09, -56.50) 05/06/2021   15:30:54  (  70.08, -56.51)    1.02                 4
 05/06/2021   16:20:22   ( -69.87, 110.83) 05/06/2021   16:21:34  ( -69.89, 111.11)   10.96                72
 05/09/2021   06:57:51   ( -70.15,-108.18) 05/09/2021   06:57:07  ( -70.17,-108.19)    2.44                44
 05/09/2021   07:47:18   (  70.04,  59.31) 05/09/2021   07:47:51  (  70.06,  59.29)    2.24                33
 05/11/2021   22:24:41   (  70.65,-159.21) 05/11/2021   22:23:31  (  70.72,-160.62)   52.59                70
 05/11/2021   23:14:19   ( -70.10,   7.63) 05/11/2021   23:14:03  ( -70.10,   7.69)    2.37                16
 05/12/2021   00:03:46   (  69.99, 175.12) 05/12/2021   00:04:47  (  69.99, 175.17)    1.91                61
 05/14/2021   14:41:15   (  70.20, -43.98) 05/14/2021   14:40:17  (  70.18, -43.99)    2.50                58
 05/14/2021   15:30:45   ( -70.10, 123.51) 05/14/2021   15:30:59  ( -70.08, 123.49)    2.68                14
 05/14/2021   16:20:23   (  69.38, -69.84) 05/14/2021   16:21:31  (  69.33, -68.11)   67.85                68