Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/18/2022   21:46:38   (   0.22,-128.33) (   0.93,-125.13)  364.89                80
 07/20/2022   10:05:48   (  -0.26,-128.31) (   0.24,-130.41)  239.01                80
 07/21/2022   09:49:44   (  -0.24,-128.30) (  -0.79,-125.88)  275.40                80
 07/22/2022   22:09:03   (   0.28,-128.26) (  -0.36,-131.20)  334.41                80
 07/23/2022   21:52:58   (   0.27,-128.24) (   0.62,-126.66)  179.92                80
 07/25/2022   10:12:07   (  -0.30,-128.22) (   0.55,-131.94)  424.35                80
 07/26/2022   09:56:04   (  -0.29,-128.19) (  -0.49,-127.42)   89.32                80
 07/28/2022   21:57:52   (   0.31,-128.12) (   0.32,-128.20)    8.81                 6
 07/31/2022   09:59:43   (  -0.33,-128.07) (  -0.14,-128.94)   99.20                80