Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 7 2.  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)
 07/02/2025   20:29:13   (  -0.02,-104.73) (   0.00,-106.05)  146.65                 0
 07/03/2025   20:11:44   (  -0.02,-104.73) (   0.70,-101.45)  373.69                80
 07/05/2025   08:33:32   (   0.01,-104.72) (   0.44,-106.72)  227.73                80
 07/06/2025   08:12:08   (   0.00,-104.72) (  -0.56,-102.19)  288.12                80
 07/07/2025   20:34:05   (   0.01,-104.72) (  -0.65,-107.50)  316.78                80
 07/08/2025   20:18:02   (   0.01,-104.72) (   0.41,-102.98)  199.16                80
 07/10/2025   08:39:49   (  -0.01,-104.71) (   0.79,-108.24)  402.30                80
 07/11/2025   08:18:24   (  -0.01,-104.71) (  -0.22,-103.71)  113.59                80
 07/12/2025   20:40:22   (   0.00,-104.71) (  -0.98,-109.02)  491.36                80
 07/13/2025   20:24:17   (   0.00,-104.71) (   0.02,-104.49)   24.96                80
 07/16/2025   08:27:21   (  -0.00,-104.70) (   0.11,-105.23)   60.21                80