Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 8 18.  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)
 08/19/2025   20:27:57   (   0.08,-104.72) (  -0.24,-106.02)  148.69                80
 08/20/2025   20:11:52   (   0.08,-104.72) (   0.80,-101.50)  367.55                80
 08/22/2025   08:33:40   (  -0.09,-104.70) (   0.36,-106.77)  235.52                80
 08/23/2025   08:12:15   (  -0.08,-104.70) (  -0.62,-102.23)  280.89                80
 08/24/2025   20:34:11   (   0.09,-104.72) (  -0.53,-107.54)  321.24                80
 08/25/2025   20:18:07   (   0.09,-104.72) (   0.50,-103.01)  195.69                80
 08/27/2025   08:39:54   (  -0.09,-104.71) (   0.71,-108.27)  406.32                80
 08/28/2025   08:18:30   (  -0.09,-104.71) (  -0.32,-103.75)  110.24                80
 08/29/2025   20:40:25   (   0.10,-104.73) (  -0.88,-109.05)  492.35                80
 08/30/2025   20:24:20   (   0.10,-104.73) (   0.16,-104.52)   24.34                80