Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 3 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 03/06/2023   08:04:57   (   0.01,-104.70) (  -0.89,-100.57)  470.56                80
 03/07/2023   20:26:53   (  -0.01,-104.72) (  -0.26,-105.88)  132.58                80
 03/08/2023   20:10:48   (  -0.00,-104.72) (   0.73,-101.34)  384.36                80
 03/10/2023   08:32:35   (   0.00,-104.72) (   0.43,-106.62)  216.25                80
 03/11/2023   08:11:10   (   0.01,-104.72) (  -0.56,-102.08)  300.42                80
 03/12/2023   20:33:05   (  -0.01,-104.73) (  -0.63,-107.38)  303.19                80
 03/13/2023   20:17:01   (  -0.01,-104.73) (   0.43,-102.86)  213.54                80
 03/15/2023   08:38:47   (   0.02,-104.73) (   0.77,-108.13)  387.29                80
 03/16/2023   08:17:21   (   0.02,-104.72) (  -0.24,-103.59)  128.95                80
 03/17/2023   20:39:17   (  -0.02,-104.72) (  -0.93,-108.90)  475.52                80
 03/18/2023   20:23:11   (  -0.02,-104.72) (   0.08,-104.37)   41.20                80