Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 7 6.  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)
 07/06/2023   06:37:17   (  -0.01, -75.19) (   0.60, -77.96)  315.90                80
 07/07/2023   06:15:52   (  -0.02, -75.19) (  -0.40, -73.43)  200.90                80
 07/08/2023   18:37:47   (   0.02, -75.20) (  -0.79, -78.73)  402.71                80
 07/09/2023   18:21:43   (   0.02, -75.21) (   0.27, -74.21)  114.79                80
 07/11/2023   06:43:29   (  -0.02, -75.22) (   0.93, -79.47)  483.84                80
 07/12/2023   06:22:04   (  -0.02, -75.23) (  -0.08, -74.94)   33.80                80
 07/14/2023   18:25:13   (   0.03, -75.26) (  -0.09, -75.70)   51.14                80
 07/15/2023   18:09:09   (   0.04, -75.28) (   0.98, -71.18)  467.00                80
 07/17/2023   06:30:55   (  -0.04, -75.30) (   0.22, -76.45)  130.65                80
 07/18/2023   06:09:30   (  -0.04, -75.32) (  -0.79, -71.91)  387.78                80
 07/19/2023   18:31:25   (   0.05, -75.34) (  -0.38, -77.22)  213.60                80