Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 6 11.  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)
 06/12/2021   22:25:04   (  70.73,-158.97) 06/12/2021   22:23:55  (  70.77,-160.78)   66.37                69
 06/12/2021   23:14:44   ( -70.06,   7.68) 06/12/2021   23:14:25  ( -70.05,   7.69)    1.92                19
 06/13/2021   00:04:11   (  69.97, 175.19) 06/13/2021   00:05:09  (  69.93, 175.17)    3.45                58
 06/15/2021   14:41:44   (  70.12, -43.98) 06/15/2021   14:40:39  (  70.15, -44.02)    3.29                65
 06/15/2021   15:31:14   ( -70.01, 123.49) 06/15/2021   15:31:20  ( -70.00, 123.53)    2.17                 6
 06/15/2021   16:20:47   (  69.58, -69.47) 06/15/2021   16:21:58  (  69.57, -68.52)   36.65                71
 06/18/2021   06:58:14   (  70.12,  71.89) 06/18/2021   06:57:35  (  70.11,  71.82)    2.80                39
 06/18/2021   07:47:44   ( -70.01,-120.63) 06/18/2021   07:48:17  ( -70.00,-120.71)    2.85                33
 06/20/2021   22:25:08   ( -70.70,  20.99) 06/20/2021   22:23:59  ( -70.80,  19.18)   67.21                69
 06/20/2021   23:14:45   (  70.05,-172.33) 06/20/2021   23:14:31  (  70.06,-172.35)    1.77                14
 06/21/2021   00:04:15   ( -69.94,  -4.84) 06/21/2021   00:05:13  ( -69.96,  -4.88)    2.15                58
 06/23/2021   14:41:48   ( -70.15, 136.05) 06/23/2021   14:40:43  ( -70.13, 136.01)    2.67                65
 06/23/2021   15:31:15   (  70.04, -56.46) 06/23/2021   15:31:27  (  70.02, -56.52)    2.56                12
 06/23/2021   16:20:52   ( -69.55, 110.49) 06/23/2021   16:22:02  ( -69.55, 111.50)   39.18                70