Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2023 5 14.  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)
 05/16/2023   13:26:42   ( -70.42, 154.80) 05/16/2023   13:27:17  ( -70.40, 154.85)    2.51                35
 05/16/2023   14:17:26   (  70.31, -37.72) 05/16/2023   14:16:44  (  70.30, -37.66)    2.69                42
 05/19/2023   04:52:59   (  70.85, 102.55) 05/19/2023   04:54:09  (  70.73, 103.58)   40.31                70
 05/19/2023   05:43:33   ( -70.33, -89.31) 05/19/2023   05:43:44  ( -70.34, -89.36)    2.22                11
 05/19/2023   06:34:17   (  70.23,  78.17) 05/19/2023   06:33:11  (  70.24,  78.13)    1.66                66
 05/21/2023   21:09:44   (  70.41,-140.97) 05/21/2023   21:10:41  (  70.42,-141.00)    1.11                57
 05/21/2023   22:00:26   ( -70.31,  26.50) 05/21/2023   22:00:11  ( -70.31,  26.47)    1.02                15
 05/21/2023   22:50:57   (  69.52,-165.00) 05/21/2023   22:49:49  (  69.59,-166.88)   73.38                68
 05/24/2023   13:26:37   (  70.40, -25.19) 05/24/2023   13:27:07  (  70.40, -25.13)    2.01                30
 05/24/2023   14:17:19   ( -70.30, 142.29) 05/24/2023   14:16:37  ( -70.30, 142.34)    1.91                42
 05/27/2023   04:52:51   ( -70.75, -77.29) 05/27/2023   04:54:03  ( -70.64, -76.54)   30.35                72
 05/27/2023   05:43:29   (  70.34,  90.68) 05/27/2023   05:43:33  (  70.36,  90.69)    1.75                 4
 05/27/2023   06:34:11   ( -70.24,-101.84) 05/27/2023   06:33:03  ( -70.25,-101.83)    1.80                68