Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2022 12 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)
 12/15/2022   14:16:25   ( -70.25, 142.18) 12/15/2022   14:17:37  ( -70.24, 142.33)    5.80                72
 12/15/2022   15:07:08   (  70.07, -50.23) 12/15/2022   15:07:05  (  70.08, -50.25)    0.96                 3
 12/15/2022   15:57:49   ( -69.94, 117.29) 12/15/2022   15:56:35  ( -69.97, 117.23)    4.24                74
 12/18/2022   06:33:22   ( -70.15,-101.90) 12/18/2022   06:34:07  ( -70.16,-101.90)    0.40                45
 12/18/2022   07:24:06   (  70.03,  65.60) 12/18/2022   07:23:34  (  70.05,  65.59)    2.25                32
 12/20/2022   21:59:49   (  70.78,-154.46) 12/20/2022   22:00:58  (  70.65,-152.92)   58.13                69
 12/20/2022   22:50:19   ( -70.11,  13.93) 12/20/2022   22:50:35  ( -70.11,  13.91)    0.66                16
 12/20/2022   23:41:03   (  69.99,-178.58) 12/20/2022   23:40:02  (  70.00,-178.60)    1.02                61
 12/23/2022   14:16:35   (  70.17, -37.72) 12/23/2022   14:17:33  (  70.20, -37.70)    3.43                58
 12/23/2022   15:07:17   ( -70.08, 129.74) 12/23/2022   15:07:03  ( -70.10, 129.78)    2.65                14
 12/23/2022   15:57:49   (  69.32, -61.84) 12/23/2022   15:56:41  (  69.38, -63.56)   68.04                68
 12/26/2022   06:33:33   (  70.15,  78.08) 12/26/2022   06:34:01  (  70.17,  78.13)    3.07                28
 12/26/2022   07:24:15   ( -70.05,-114.45) 12/26/2022   07:23:31  ( -70.07,-114.38)    3.36                44