Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 7 30.  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)
 07/30/2021   22:25:28   (  70.11,-159.86) 07/30/2021   22:24:19  (  70.10,-159.82)    1.82                69
 07/30/2021   23:14:58   ( -70.00,   7.62) 07/30/2021   23:15:01  ( -70.03,   7.62)    2.30                 3
 07/31/2021   00:04:29   (  69.68, 174.82) 07/31/2021   00:05:40  (  69.63, 175.52)   27.74                71
 08/02/2021   14:41:59   (  70.07, -44.03) 08/02/2021   14:41:15  (  70.06, -43.98)    2.84                44
 08/02/2021   15:31:29   ( -69.97, 123.45) 08/02/2021   15:31:57  ( -69.97, 123.47)    0.99                28
 08/05/2021   06:08:50   ( -70.85, -94.65) 08/05/2021   06:07:42  ( -70.92, -96.90)   82.17                68
 08/05/2021   06:58:30   (  70.03,  71.78) 08/05/2021   06:58:11  (  70.01,  71.86)    3.43                19
 08/05/2021   07:48:00   ( -69.93,-120.73) 08/05/2021   07:48:53  ( -69.93,-120.70)    1.30                53
 08/07/2021   22:25:32   ( -70.15,  20.19) 08/07/2021   22:24:23  ( -70.14,  20.12)    2.69                69
 08/07/2021   23:14:59   (  70.03,-172.33) 08/07/2021   23:15:07  (  70.02,-172.39)    2.58                 8
 08/08/2021   00:04:33   ( -69.72,  -5.14) 08/08/2021   00:05:45  ( -69.72,  -4.63)   19.95                72
 08/10/2021   14:42:03   ( -70.10, 135.99) 08/10/2021   14:41:19  ( -70.10, 135.95)    1.71                44
 08/10/2021   15:31:30   (  69.98, -56.53) 08/10/2021   15:32:03  (  69.98, -56.57)    1.52                33