Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2022 12 29.  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)
 12/31/2022   14:16:44   ( -70.21, 142.20) 12/31/2022   14:17:38  ( -70.19, 142.25)    2.79                54
 12/31/2022   15:07:28   (  70.09, -50.30) 12/31/2022   15:07:05  (  70.08, -50.25)    1.91                23
 12/31/2022   15:57:56   ( -69.26, 118.24) 12/31/2022   15:56:48  ( -69.26, 116.26)   77.94                68
 01/03/2023   06:33:41   ( -70.15,-101.93) 01/03/2023   06:34:08  ( -70.17,-101.89)    3.32                27
 01/03/2023   07:24:25   (  70.03,  65.55) 01/03/2023   07:23:36  (  70.01,  65.52)    2.74                49
 01/05/2023   21:59:57   (  70.24,-153.63) 01/05/2023   22:01:08  (  70.24,-153.56)    2.70                71
 01/05/2023   22:50:38   ( -70.09,  13.92) 01/05/2023   22:50:39  ( -70.08,  13.85)    2.75                 1
 01/05/2023   23:41:19   (  69.87,-178.44) 01/05/2023   23:40:06  (  69.91,-178.74)   12.40                73
 01/08/2023   14:16:53   (  70.19, -37.79) 01/08/2023   14:17:37  (  70.18, -37.76)    2.01                44
 01/08/2023   15:07:35   ( -70.09, 129.68) 01/08/2023   15:07:07  ( -70.08, 129.73)    2.49                28
 01/11/2023   05:43:20   ( -70.99, -90.62) 01/11/2023   05:44:27  ( -70.92, -88.42)   80.46                67
 01/11/2023   06:33:50   (  70.15,  78.04) 01/11/2023   06:34:06  (  70.15,  78.08)    1.53                16
 01/11/2023   07:24:32   ( -70.05,-114.49) 01/11/2023   07:23:36  ( -70.05,-114.43)    2.32                56