Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2023   10:58:18   (   0.12,-146.62) (  -0.64,-143.19)  390.64                80
 05/13/2023   23:22:57   (  -0.09,-147.30) (  -0.39,-148.53)  140.84                80
 05/14/2023   23:01:33   (  -0.11,-147.75) (   0.73,-144.02)  425.21                80
 05/16/2023   11:26:03   (   0.08,-148.46) (   0.31,-149.32)   99.05                80
 05/17/2023   11:04:39   (   0.10,-148.91) (  -0.81,-144.81)  466.50                80
 05/18/2023   23:29:17   (  -0.07,-149.58) (  -0.20,-150.16)   66.17                80
 05/19/2023   23:07:53   (  -0.09,-150.02) (   0.86,-145.64)  499.03                80
 05/21/2023   11:32:23   (   0.05,-150.72) (   0.10,-150.95)   26.57                80
 05/23/2023   23:35:37   (  -0.05,-151.81) (  -0.03,-151.78)    4.03                80