Simultaneous Nadir Overpasses (SNOs) between NPP and LANDSAT-9
TLE Epoch: 2022 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)
 12/18/2022   06:33:21   ( -70.14,-101.88) 12/18/2022   06:34:06  ( -70.16,-101.90)    2.66                45
 12/18/2022   07:24:06   (  70.06,  65.54) 12/18/2022   07:23:33  (  70.06,  65.61)    2.37                33
 12/20/2022   21:59:48   (  70.76,-154.43) 12/20/2022   22:00:57  (  70.66,-152.91)   56.85                69
 12/20/2022   22:50:19   ( -70.10,  13.95) 12/20/2022   22:50:35  ( -70.11,  13.91)    1.75                16
 12/20/2022   23:41:04   (  70.03,-178.64) 12/20/2022   23:40:02  (  70.00,-178.59)    3.16                62
 12/23/2022   14:16:36   (  70.21, -37.78) 12/23/2022   14:17:33  (  70.20, -37.71)    2.71                57
 12/23/2022   15:07:17   ( -70.06, 129.76) 12/23/2022   15:07:03  ( -70.09, 129.77)    2.73                14
 12/23/2022   15:57:49   (  69.31, -61.81) 12/23/2022   15:56:41  (  69.37, -63.57)   69.37                68
 12/26/2022   06:33:33   (  70.13,  78.11) 12/26/2022   06:34:01  (  70.15,  78.12)    2.65                28
 12/26/2022   07:24:15   ( -70.04,-114.43) 12/26/2022   07:23:31  ( -70.05,-114.40)    1.71                44
 12/28/2022   21:59:48   ( -70.33,  26.25) 12/28/2022   22:01:00  ( -70.26,  26.51)   12.41                72
 12/28/2022   22:50:30   (  70.11,-166.10) 12/28/2022   22:50:28  (  70.09,-166.09)    2.58                 2
 12/28/2022   23:41:11   ( -69.96,   1.45) 12/28/2022   23:39:58  ( -69.99,   1.40)    3.19                73
 12/31/2022   14:16:43   ( -70.16, 142.29) 12/31/2022   14:17:28  ( -70.18, 142.28)    2.31                45
 12/31/2022   15:07:27   (  70.05, -50.24) 12/31/2022   15:06:55  (  70.06, -50.24)    1.29                32