Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2022 12 31.  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)    2.84                54
 12/31/2022   15:07:28   (  70.09, -50.30) 12/31/2022   15:07:05  (  70.09, -50.25)    1.78                23
 12/31/2022   15:57:56   ( -69.26, 118.24) 12/31/2022   15:56:48  ( -69.26, 116.26)   78.05                68
 01/03/2023   06:33:41   ( -70.15,-101.94) 01/03/2023   06:34:08  ( -70.17,-101.91)    2.09                27
 01/03/2023   07:24:25   (  70.03,  65.55) 01/03/2023   07:23:35  (  70.06,  65.59)    3.25                50
 01/05/2023   21:59:56   (  70.25,-153.64) 01/05/2023   22:01:07  (  70.22,-153.58)    3.47                71
 01/05/2023   22:50:37   ( -70.10,  13.91) 01/05/2023   22:50:37  ( -70.12,  13.91)    2.05                 0
 01/05/2023   23:41:19   (  69.88,-178.45) 01/05/2023   23:40:06  (  69.90,-178.76)   12.12                73
 01/08/2023   14:16:52   (  70.15, -37.73) 01/08/2023   14:17:37  (  70.15, -37.80)    2.85                45
 01/08/2023   15:07:34   ( -70.06, 129.74) 01/08/2023   15:07:07  ( -70.05, 129.69)    2.21                27
 01/11/2023   05:43:19   ( -70.96, -90.57) 01/11/2023   05:44:27  ( -70.88, -88.48)   76.65                68
 01/11/2023   06:33:49   (  70.12,  78.09) 01/11/2023   06:34:06  (  70.11,  78.02)    3.00                17
 01/11/2023   07:24:31   ( -70.02,-114.44) 01/11/2023   07:23:36  ( -70.01,-114.49)    2.25                55
 01/13/2023   22:00:02   ( -70.20,  26.42) 01/13/2023   22:01:07  ( -70.22,  26.42)    1.69                65
 01/13/2023   22:50:46   (  70.10,-166.11) 01/13/2023   22:50:34  (  70.10,-166.11)    0.01                12
 01/13/2023   23:41:21   ( -69.63,   1.92) 01/13/2023   23:40:10  ( -69.67,   0.93)   38.62                71