Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 10 1.  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)
 10/02/2021   22:25:48   (  70.10,-159.91) 10/02/2021   22:24:49  (  70.13,-159.91)    3.73                59
 10/02/2021   23:15:17   ( -70.04,   7.64) 10/02/2021   23:15:31  ( -70.03,   7.56)    2.97                14
 10/03/2021   00:04:55   (  69.33, 174.32) 10/03/2021   00:06:03  (  69.29, 175.96)   64.94                68
 10/05/2021   14:42:18   (  70.10, -44.03) 10/05/2021   14:41:44  (  70.09, -44.07)    1.68                34
 10/05/2021   15:31:48   ( -69.98, 123.44) 10/05/2021   15:32:26  ( -69.99, 123.40)    1.60                38
 10/08/2021   06:09:13   ( -70.57, -95.10) 10/08/2021   06:08:03  ( -70.62, -96.45)   50.12                70
 10/08/2021   06:58:48   (  70.03,  71.76) 10/08/2021   06:58:38  (  70.05,  71.76)    1.59                10
 10/08/2021   07:48:18   ( -69.92,-120.76) 10/08/2021   07:49:20  ( -69.95,-120.76)    2.36                62
 10/10/2021   22:25:51   ( -70.13,  20.12) 10/10/2021   22:24:49  ( -70.11,  20.13)    1.69                62
 10/10/2021   23:15:18   (  70.02,-172.38) 10/10/2021   23:15:33  (  70.01,-172.41)    1.37                15
 10/11/2021   00:04:57   ( -69.42,  -5.58) 10/11/2021   00:06:06  ( -69.43,  -4.23)   52.57                69
 10/13/2021   14:42:22   ( -70.06, 135.90) 10/13/2021   14:41:44  ( -70.08, 135.96)    3.16                38
 10/13/2021   15:31:48   (  70.00, -56.53) 10/13/2021   15:32:28  (  69.98, -56.59)    3.20                40