Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 4 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 04/17/2023   06:37:33   (  -0.03, -75.22) (   0.60, -77.91)  307.41                80
 04/18/2023   06:16:08   (  -0.04, -75.23) (  -0.48, -73.39)  210.67                80
 04/19/2023   18:40:41   (   0.03, -75.25) (  -0.71, -78.68)  391.28                80
 04/20/2023   18:19:15   (   0.04, -75.26) (   0.31, -74.15)  127.19                80
 04/22/2023   06:43:39   (  -0.03, -75.28) (   0.90, -79.40)  469.40                80
 04/23/2023   06:22:13   (  -0.04, -75.30) (  -0.13, -74.87)   49.26                80
 04/25/2023   18:27:59   (   0.03, -75.34) (  -0.02, -75.63)   32.79                80
 04/26/2023   18:06:32   (   0.03, -75.35) (   0.96, -71.08)  486.54                80
 04/28/2023   06:30:57   (  -0.02, -75.39) (   0.17, -76.35)  108.69                80
 04/29/2023   06:09:30   (  -0.02, -75.41) (  -0.80, -71.80)  411.04                80