Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 7 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2022   09:49:44   (  -0.24,-128.29) (  -0.76,-125.87)  274.98                80
 07/22/2022   22:09:02   (   0.28,-128.26) (  -0.40,-131.19)  334.59                80
 07/23/2022   21:52:58   (   0.27,-128.24) (   0.63,-126.66)  179.59                80
 07/25/2022   10:12:08   (  -0.30,-128.21) (   0.53,-131.94)  425.41                80
 07/26/2022   09:56:03   (  -0.29,-128.18) (  -0.45,-127.41)   88.11                80
 07/28/2022   21:56:37   (   0.31,-128.11) (   0.28,-128.19)    9.42                80
 07/31/2022   09:59:42   (  -0.33,-128.05) (  -0.10,-128.93)  101.19                80
 08/01/2022   09:43:38   (  -0.31,-128.02) (  -1.14,-124.41)  411.97                80
 08/02/2022   22:02:56   (   0.34,-127.96) (  -0.06,-129.71)  199.98                80
 08/03/2022   21:46:51   (   0.33,-127.93) (   0.93,-125.18)  313.14                80