Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 12 18.  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)
 12/18/2023   15:06:35   (  70.13, -50.26) 12/18/2023   15:06:57  (  70.12, -50.20)    2.12                22
 12/18/2023   15:57:16   ( -69.99, 117.27) 12/18/2023   15:56:27  ( -70.01, 117.27)    2.35                49
 12/21/2023   06:32:46   ( -70.38,-102.17) 12/21/2023   06:33:58  ( -70.31,-101.70)   19.17                72
 12/21/2023   07:23:27   (  70.11,  65.55) 12/21/2023   07:23:27  (  70.09,  65.63)    3.38                 0
 12/21/2023   08:14:08   ( -69.96,-126.91) 12/21/2023   08:12:57  ( -69.98,-126.89)    2.25                71
 12/23/2023   22:49:34   ( -70.15,  13.96) 12/23/2023   22:50:30  ( -70.14,  13.94)    1.50                56
 12/23/2023   23:40:18   (  70.04,-178.57) 12/23/2023   23:39:57  (  70.03,-178.57)    1.27                21
 12/24/2023   00:30:47   ( -69.26, -10.11) 12/24/2023   00:29:38  ( -69.32, -11.91)   71.37                69
 12/26/2023   15:06:25   ( -70.09, 129.83) 12/26/2023   15:06:59  ( -70.10, 129.77)    2.79                34
 12/26/2023   15:57:09   (  69.99, -62.70) 12/26/2023   15:56:26  (  69.99, -62.74)    1.71                43
 12/29/2023   06:32:41   (  70.56,  77.56) 12/29/2023   06:33:51  (  70.47,  78.55)   38.44                70
 12/29/2023   07:23:16   ( -70.09,-114.39) 12/29/2023   07:23:26  ( -70.09,-114.36)    1.01                10
 12/29/2023   08:14:00   (  69.99,  53.07) 12/29/2023   08:12:53  (  69.98,  53.12)    2.66                67
 12/31/2023   22:49:25   (  70.16,-166.02) 12/31/2023   22:50:24  (  70.15,-166.03)    1.05                59
 12/31/2023   23:40:07   ( -70.05,   1.46) 12/31/2023   23:39:54  ( -70.05,   1.46)    0.66                13
 01/01/2024   00:30:40   (  69.37, 169.77) 01/01/2024   00:29:30  (  69.43, 168.26)   59.26                70