Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2022 12 30.  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   14:16:43   ( -70.18, 142.25) 12/31/2022   14:17:38  ( -70.16, 142.22)    2.35                55
 12/31/2022   15:07:27   (  70.06, -50.26) 12/31/2022   15:07:05  (  70.06, -50.29)    1.20                22
 12/31/2022   15:57:55   ( -69.23, 118.28) 12/31/2022   15:56:47  ( -69.29, 116.29)   78.29                68
 01/03/2023   06:33:40   ( -70.12,-101.89) 01/03/2023   06:34:08  ( -70.14,-101.94)    3.05                28
 01/03/2023   07:24:25   (  70.06,  65.52) 01/03/2023   07:23:35  (  70.04,  65.55)    2.63                50
 01/05/2023   21:59:56   (  70.21,-153.59) 01/05/2023   22:01:08  (  70.21,-153.60)    0.82                72
 01/05/2023   22:50:38   ( -70.12,  13.87) 01/05/2023   22:50:38  ( -70.11,  13.89)    1.68                 0
 01/05/2023   23:41:19   (  69.85,-178.40) 01/05/2023   23:40:07  (  69.88,-178.78)   15.17                72
 01/08/2023   14:16:53   (  70.17, -37.75) 01/08/2023   14:17:37  (  70.20, -37.73)    3.33                44
 01/08/2023   15:07:35   ( -70.07, 129.71) 01/08/2023   15:07:08  ( -70.04, 129.68)    3.38                27
 01/11/2023   05:43:20   ( -71.02, -90.68) 01/11/2023   05:44:27  ( -70.89, -88.47)   81.52                67
 01/11/2023   06:33:49   (  70.13,  78.07) 01/11/2023   06:34:06  (  70.12,  78.03)    2.56                17
 01/11/2023   07:24:31   ( -70.03,-114.46) 01/11/2023   07:23:36  ( -70.02,-114.48)    1.77                55