Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2021   10:10:52   (  -0.03,-127.87) (   0.85,-131.76)  444.05                80
 12/22/2021   09:54:46   (  -0.02,-127.90) (  -0.17,-127.23)   76.34                80
 12/24/2021   21:57:56   (   0.03,-127.96) (   0.03,-128.00)    4.08                80
 12/27/2021   09:58:17   (  -0.04,-128.04) (   0.12,-128.72)   78.01                80
 12/28/2021   09:42:11   (  -0.03,-128.06) (  -0.91,-124.19)  441.80                80
 12/29/2021   22:01:27   (   0.04,-128.08) (  -0.25,-129.49)  159.82                80
 12/30/2021   21:45:20   (   0.03,-128.10) (   0.72,-124.95)  359.61                80
 01/01/2022   10:04:26   (  -0.04,-128.14) (   0.45,-130.21)  235.88                80
 01/02/2022   09:48:21   (  -0.03,-128.16) (  -0.58,-125.67)  282.96                80