Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 5 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/15/2023   08:19:35   (   0.00,-104.72) (  -0.27,-103.46)  143.63                80
 05/16/2023   20:41:30   (  -0.00,-104.72) (  -0.93,-108.76)  460.58                80
 05/17/2023   20:25:26   (  -0.00,-104.73) (   0.12,-104.24)   56.36                80
 05/20/2023   08:28:27   (   0.00,-104.74) (   0.08,-104.97)   27.25                80
 05/21/2023   08:07:02   (   0.00,-104.73) (  -0.98,-100.45)  489.24                80
 05/22/2023   20:28:58   (   0.00,-104.73) (  -0.20,-105.75)  115.42                80
 05/23/2023   20:12:52   (   0.01,-104.74) (   0.80,-101.22)  401.30                80
 05/25/2023   08:34:38   (  -0.01,-104.75) (   0.40,-106.48)  198.46                80
 05/26/2023   08:13:13   (  -0.02,-104.75) (  -0.61,-101.95)  318.17                80
 05/27/2023   20:35:08   (   0.02,-104.75) (  -0.56,-107.26)  286.47                80
 05/28/2023   20:19:03   (   0.02,-104.75) (   0.45,-102.72)  230.69                80