Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 12 25.  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)
 12/25/2024   08:34:21   (   0.02,-104.71) (   0.49,-106.75)  233.09                80
 12/26/2024   08:12:54   (   0.02,-104.71) (  -0.51,-102.21)  283.66                80
 12/27/2024   20:34:49   (  -0.02,-104.67) (  -0.62,-107.52)  324.41                80
 12/28/2024   20:18:42   (  -0.02,-104.67) (   0.38,-102.98)  192.63                80
 12/30/2024   08:40:27   (   0.02,-104.71) (   0.81,-108.24)  402.75                80
 12/31/2024   08:19:01   (   0.02,-104.70) (  -0.20,-103.70)  113.67                80
 01/01/2025   20:40:54   (  -0.02,-104.65) (  -0.98,-109.00)  495.41                80
 01/02/2025   20:24:48   (  -0.01,-104.65) (   0.04,-104.46)   21.42                80
 01/05/2025   08:27:47   (   0.00,-104.69) (   0.12,-105.19)   56.52                80
 01/06/2025   08:06:20   (  -0.00,-104.69) (  -0.90,-100.65)  460.12                80
 01/07/2025   20:28:12   (  -0.00,-104.64) (  -0.30,-105.94)  148.67                80