Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 7 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/22/2021   10:11:50   (  -0.11,-127.54) (   0.85,-131.92)  499.03                80
 07/23/2021   09:55:46   (  -0.10,-127.49) (  -0.13,-127.38)   12.27                80
 07/25/2021   21:56:19   (   0.11,-127.29) (  -0.08,-128.15)   98.57                80
 07/26/2021   21:40:14   (   0.10,-127.24) (   0.90,-123.62)  412.94                80
 07/28/2021   09:59:23   (  -0.12,-127.26) (   0.24,-128.90)  186.72                80
 07/29/2021   09:43:19   (  -0.11,-127.21) (  -0.74,-124.36)  324.61                80
 07/30/2021   22:02:36   (   0.14,-127.05) (  -0.46,-129.66)  298.05                80
 07/31/2021   21:46:32   (   0.13,-127.00) (   0.53,-125.13)  213.08                80
 08/02/2021   10:05:41   (  -0.15,-127.01) (   0.62,-130.41)  387.26                80
 08/03/2021   09:49:37   (  -0.14,-126.96) (  -0.36,-125.87)  123.40                80