Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2022 12 28.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 12/28/2022   21:59:53   ( -70.55,  25.90) 12/28/2022   22:01:04  ( -70.45,  26.75)   33.91                71
 12/28/2022   22:50:31   (  70.11,-166.11) 12/28/2022   22:50:35  (  70.12,-166.07)    1.76                 4
 12/28/2022   23:41:12   ( -70.03,   1.34) 12/28/2022   23:40:04  ( -70.01,   1.41)    2.92                68
 12/31/2022   14:16:43   ( -70.17, 142.26) 12/31/2022   14:17:38  ( -70.17, 142.23)    1.38                55
 12/31/2022   15:07:27   (  70.05, -50.24) 12/31/2022   15:07:05  (  70.06, -50.28)    1.99                22
 12/31/2022   15:57:55   ( -69.22, 118.29) 12/31/2022   15:56:47  ( -69.30, 116.30)   78.72                68
 01/03/2023   06:33:41   ( -70.16,-101.96) 01/03/2023   06:34:08  ( -70.15,-101.93)    2.17                27
 01/03/2023   07:24:25   (  70.05,  65.53) 01/03/2023   07:23:35  (  70.03,  65.55)    1.72                50
 01/05/2023   21:59:56   (  70.21,-153.58) 01/05/2023   22:01:08  (  70.20,-153.61)    1.49                72
 01/05/2023   22:50:38   ( -70.11,  13.89) 01/05/2023   22:50:38  ( -70.10,  13.88)    1.34                 0
 01/05/2023   23:41:19   (  69.84,-178.39) 01/05/2023   23:40:07  (  69.87,-178.79)   15.89                72
 01/08/2023   14:16:53   (  70.16, -37.74) 01/08/2023   14:17:37  (  70.18, -37.76)    1.96                44
 01/08/2023   15:07:35   ( -70.06, 129.73) 01/08/2023   15:07:07  ( -70.08, 129.74)    2.16                28