Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 5 24.  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)
 05/25/2021   06:58:06   ( -70.11,-108.13) 05/25/2021   06:57:18  ( -70.09,-108.10)    2.67                48
 05/25/2021   07:47:33   (  70.01,  59.37) 05/25/2021   07:48:03  (  70.02,  59.30)    3.18                30
 05/27/2021   22:24:54   (  70.85,-158.78) 05/27/2021   22:23:46  (  70.91,-160.97)   79.77                68
 05/27/2021   23:14:36   ( -70.08,   7.71) 05/27/2021   23:14:14  ( -70.07,   7.68)    1.44                22
 05/28/2021   00:04:03   (  69.98, 175.21) 05/28/2021   00:04:58  (  69.96, 175.16)    2.72                55
 05/30/2021   14:41:37   (  70.16, -43.93) 05/30/2021   14:40:29  (  70.16, -44.01)    2.95                68
 05/30/2021   15:31:08   ( -70.00, 123.47) 05/30/2021   15:31:10  ( -70.01, 123.55)    3.05                 2
 05/30/2021   16:20:39   (  69.67, -69.34) 05/30/2021   16:21:50  (  69.69, -68.67)   25.92                71
 06/02/2021   06:58:08   (  70.13,  71.90) 06/02/2021   06:57:25  (  70.11,  71.85)    3.09                43
 06/02/2021   07:47:38   ( -70.02,-120.62) 06/02/2021   07:48:07  ( -70.00,-120.67)    3.20                29
 06/04/2021   22:25:00   ( -70.85,  21.21) 06/04/2021   22:23:52  ( -70.93,  18.98)   81.72                68
 06/04/2021   23:14:40   (  70.03,-172.36) 06/04/2021   23:14:21  (  70.05,-172.30)    2.79                19
 06/05/2021   00:04:10   ( -69.93,  -4.87) 06/05/2021   00:05:03  ( -69.94,  -4.82)    2.24                53
 06/07/2021   14:41:42   ( -70.16, 136.05) 06/07/2021   14:40:33  ( -70.14, 136.02)    2.24                69
 06/07/2021   15:31:09   (  70.04, -56.46) 06/07/2021   15:31:17  (  70.04, -56.52)    2.43                 8
 06/07/2021   16:20:43   ( -69.72, 110.72) 06/07/2021   16:21:55  ( -69.72, 111.27)   21.19                72