Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/19/2023   23:07:53   (  -0.09,-150.01) (   0.87,-145.64)  498.36                80
 05/21/2023   11:32:23   (   0.06,-150.71) (   0.10,-150.95)   27.93                80
 05/23/2023   23:32:57   (  -0.05,-151.80) (  -0.05,-151.78)    2.40                80
 05/26/2023   11:38:38   (   0.04,-152.92) (  -0.05,-152.57)   39.42                75
 05/27/2023   23:58:00   (  -0.01,-153.56) (  -1.01,-157.90)  495.62                80
 05/28/2023   23:41:57   (  -0.03,-153.99) (   0.11,-153.40)   68.22                80
 05/30/2023   12:03:46   (  -0.00,-154.67) (   0.91,-158.70)  459.76                80
 05/31/2023   11:42:22   (   0.02,-155.10) (  -0.16,-154.18)  103.52                80
 06/02/2023   00:04:20   (   0.02,-155.73) (  -0.83,-159.53)  433.11                80