Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 7 27.  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)
 07/28/2021   06:08:45   (  70.81,  85.29) 07/28/2021   06:07:37  (  70.89,  83.16)   78.47                68
 07/28/2021   06:58:27   ( -70.04,-108.21) 07/28/2021   06:58:04  ( -70.02,-108.14)    3.17                23
 07/28/2021   07:47:54   (  69.94,  59.29) 07/28/2021   07:48:49  (  69.95,  59.28)    1.28                55
 07/30/2021   22:25:28   (  70.11,-159.86) 07/30/2021   22:24:19  (  70.10,-159.82)    1.85                69
 07/30/2021   23:14:58   ( -70.01,   7.63) 07/30/2021   23:15:01  ( -70.02,   7.63)    1.42                 3
 07/31/2021   00:04:29   (  69.68, 174.82) 07/31/2021   00:05:40  (  69.63, 175.52)   27.76                71
 08/02/2021   14:41:59   (  70.07, -44.03) 08/02/2021   14:41:15  (  70.05, -43.97)    3.12                44
 08/02/2021   15:31:29   ( -69.97, 123.45) 08/02/2021   15:31:57  ( -69.97, 123.47)    0.82                28
 08/05/2021   06:08:50   ( -70.85, -94.65) 08/05/2021   06:07:42  ( -70.91, -96.88)   81.73                68
 08/05/2021   06:58:30   (  70.03,  71.78) 08/05/2021   06:58:12  (  70.06,  71.78)    3.49                18
 08/05/2021   07:48:00   ( -69.93,-120.73) 08/05/2021   07:48:53  ( -69.92,-120.68)    2.10                53
 08/07/2021   22:25:32   ( -70.15,  20.19) 08/07/2021   22:24:23  ( -70.13,  20.14)    3.15                69
 08/07/2021   23:14:59   (  70.03,-172.33) 08/07/2021   23:15:07  (  70.01,-172.38)    2.78                 8
 08/08/2021   00:04:33   ( -69.72,  -5.14) 08/08/2021   00:05:45  ( -69.71,  -4.61)   20.56                72