Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 10 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)
 10/05/2021   14:42:18   (  70.10, -44.04) 10/05/2021   14:41:44  (  70.09, -44.07)    1.48                34
 10/05/2021   15:31:48   ( -69.98, 123.43) 10/05/2021   15:32:26  ( -69.99, 123.39)    2.12                38
 10/08/2021   06:09:13   ( -70.57, -95.11) 10/08/2021   06:08:03  ( -70.63, -96.46)   50.17                70
 10/08/2021   06:58:48   (  70.03,  71.75) 10/08/2021   06:58:38  (  70.05,  71.76)    1.99                10
 10/08/2021   07:48:18   ( -69.92,-120.77) 10/08/2021   07:49:20  ( -69.95,-120.77)    3.30                62
 10/10/2021   22:25:51   ( -70.12,  20.11) 10/10/2021   22:24:49  ( -70.12,  20.12)    0.87                62
 10/10/2021   23:15:18   (  70.02,-172.39) 10/10/2021   23:15:33  (  70.01,-172.41)    1.01                15
 10/11/2021   00:04:57   ( -69.41,  -5.58) 10/11/2021   00:06:06  ( -69.43,  -4.24)   52.73                69
 10/13/2021   14:42:21   ( -70.11, 135.97) 10/13/2021   14:41:44  ( -70.08, 135.95)    2.97                37
 10/13/2021   15:31:48   (  70.00, -56.54) 10/13/2021   15:32:28  (  69.98, -56.59)    2.75                40
 10/16/2021   06:09:15   (  70.52,  84.81) 10/16/2021   06:08:05  (  70.58,  83.63)   44.42                70
 10/16/2021   06:58:52   ( -70.03,-108.26) 10/16/2021   06:58:39  ( -70.05,-108.22)    2.65                13
 10/16/2021   07:48:19   (  69.92,  59.23) 10/16/2021   07:49:23  (  69.95,  59.23)    3.64                64