Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 5 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/16/2023   11:26:03   (   0.08,-148.46) (   0.29,-149.32)   99.19                80
 05/17/2023   11:04:39   (   0.10,-148.90) (  -0.82,-144.82)  466.26                80
 05/18/2023   23:29:18   (  -0.07,-149.58) (  -0.20,-150.16)   66.32                80
 05/19/2023   23:07:53   (  -0.09,-150.02) (   0.87,-145.64)  498.78                80
 05/21/2023   11:32:23   (   0.05,-150.71) (   0.10,-150.95)   27.17                80
 05/23/2023   23:33:49   (  -0.05,-151.81) (  -0.04,-151.78)    3.43                28
 05/26/2023   11:38:43   (   0.04,-152.93) (  -0.07,-152.58)   41.16                80
 05/27/2023   23:58:00   (  -0.01,-153.58) (  -0.99,-157.91)  493.77                80
 05/28/2023   23:39:16   (  -0.03,-154.01) (   0.09,-153.39)   70.29                80