Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 5 2.  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   23:14:23   (  70.11,-172.35) 05/03/2021   23:13:58  (  70.14,-172.35)    3.10                25
 05/04/2021   00:03:53   ( -70.00,  -4.88) 05/04/2021   00:04:39  ( -70.00,  -4.82)    2.34                46
 05/06/2021   14:41:24   ( -70.17, 135.97) 05/06/2021   14:40:10  ( -70.17, 136.05)    3.00                74
 05/06/2021   15:30:51   (  70.06, -56.54) 05/06/2021   15:30:54  (  70.06, -56.47)    2.84                 3
 05/06/2021   16:20:22   ( -69.90, 110.86) 05/06/2021   16:21:35  ( -69.91, 111.07)    8.11                73
 05/09/2021   06:57:50   ( -70.18,-108.14) 05/09/2021   06:57:06  ( -70.14,-108.15)    3.60                44
 05/09/2021   07:47:18   (  70.01,  59.27) 05/09/2021   07:47:50  (  70.03,  59.33)    3.53                32
 05/11/2021   22:24:40   (  70.67,-159.18) 05/11/2021   22:23:30  (  70.69,-160.57)   51.36                70
 05/11/2021   23:14:18   ( -70.12,   7.66) 05/11/2021   23:14:03  ( -70.12,   7.66)    0.54                15
 05/12/2021   00:03:45   (  70.01, 175.15) 05/12/2021   00:04:47  (  70.01, 175.13)    0.61                62
 05/14/2021   14:41:15   (  70.22, -43.95) 05/14/2021   14:40:18  (  70.20, -44.02)    3.56                57
 05/14/2021   15:30:46   ( -70.06, 123.46) 05/14/2021   15:31:00  ( -70.09, 123.46)    3.44                14
 05/14/2021   16:20:24   (  69.34, -69.88) 05/14/2021   16:21:32  (  69.35, -68.14)   68.47                68