Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 4 1.  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)
 04/01/2021   06:17:58   (  -0.13,-128.27) (   0.00,-131.17)  322.46                80
 04/02/2021   05:54:26   (  -0.13,-128.26) (   0.39,-126.02)  256.14                80
 04/03/2021   18:13:19   (   0.13,-128.33) (   0.64,-130.58)  256.57                80
 04/04/2021   17:55:19   (   0.12,-128.31) (  -0.46,-125.58)  310.71                80
 04/06/2021   06:14:20   (  -0.12,-128.19) (  -0.53,-130.18)  226.24                80
 04/07/2021   05:51:00   (  -0.12,-128.17) (   0.57,-125.19)  340.74                80
 04/08/2021   18:09:52   (   0.12,-128.24) (   0.45,-129.75)  172.35                80
 04/09/2021   17:51:53   (   0.12,-128.22) (  -0.65,-124.76)  395.00                80
 04/11/2021   06:10:52   (  -0.11,-128.10) (  -0.41,-129.34)  141.69                80
 04/12/2021   05:47:33   (  -0.12,-128.08) (   0.69,-124.35)  425.11                80
 04/13/2021   18:06:26   (   0.11,-128.14) (   0.26,-128.93)   88.88                80
 04/14/2021   17:48:27   (   0.11,-128.12) (  -0.85,-123.93)  477.97                80