Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 8 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2021   05:57:11   (   0.01,-128.27) (   0.29,-126.89)  156.80                80
 08/21/2021   18:18:41   (   0.02,-128.21) (   0.76,-131.44)  368.73                80
 08/22/2021   17:55:21   (  -0.01,-128.22) (  -0.39,-126.45)  201.06                80
 08/24/2021   06:17:01   (  -0.02,-128.31) (  -0.64,-131.05)  312.27                80
 08/25/2021   05:53:41   (   0.00,-128.31) (   0.51,-126.06)  256.92                80
 08/26/2021   18:15:11   (   0.03,-128.25) (   0.53,-130.61)  269.01                80
 08/27/2021   17:51:51   (   0.01,-128.26) (  -0.56,-125.61)  300.56                80
 08/29/2021   06:13:30   (  -0.04,-128.34) (  -0.48,-130.21)  213.03                80
 08/30/2021   05:50:11   (  -0.02,-128.34) (   0.67,-125.22)  355.62                80
 08/31/2021   18:11:40   (   0.06,-128.26) (   0.41,-129.76)  171.68                80
 09/01/2021   17:48:21   (   0.03,-128.26) (  -0.74,-124.78)  397.05                80