Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 12 30.  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)
 12/30/2024   08:40:28   (   0.02,-104.71) (   0.78,-108.25)  402.30                80
 12/31/2024   08:19:01   (   0.02,-104.71) (  -0.23,-103.71)  114.30                80
 01/01/2025   20:40:54   (  -0.01,-104.66) (  -0.99,-108.99)  494.24                80
 01/02/2025   20:24:47   (  -0.01,-104.66) (   0.03,-104.46)   22.77                80
 01/05/2025   08:27:46   (   0.00,-104.70) (   0.12,-105.18)   55.05                80
 01/06/2025   08:06:20   (  -0.00,-104.70) (  -0.91,-100.65)  461.77                80
 01/07/2025   20:28:12   (  -0.00,-104.65) (  -0.28,-105.94)  146.40                80
 01/08/2025   20:12:05   (  -0.00,-104.65) (   0.75,-101.40)  370.86                80
 01/10/2025   08:33:50   (   0.01,-104.70) (   0.45,-106.66)  223.36                80
 01/11/2025   08:12:23   (   0.01,-104.69) (  -0.59,-102.13)  293.37                80
 01/12/2025   20:34:15   (  -0.01,-104.64) (  -0.64,-107.40)  315.66                80