Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 2 3.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-15) NOAA-15 Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 02/13/2021   12:10:44   ( -80.99,-145.95) 02/13/2021   12:09:29  ( -80.97,-145.91)    1.63                75
 02/13/2021   13:01:14   (  80.98,  21.50) 02/13/2021   13:00:08  (  80.98,  21.62)    2.12                66
 02/13/2021   13:51:46   ( -80.98,-171.09) 02/13/2021   13:50:50  ( -80.98,-171.03)    0.98                56
 02/13/2021   14:42:16   (  80.98,  -3.64) 02/13/2021   14:41:29  (  80.99,  -3.51)    2.81                47
 02/13/2021   15:32:48   ( -80.97, 163.77) 02/13/2021   15:32:11  ( -80.99, 163.84)    2.24                37
 02/13/2021   16:23:19   (  80.99, -29.15) 02/13/2021   16:22:51  (  80.98, -29.00)    2.70                28
 02/13/2021   17:13:51   ( -80.99, 138.26) 02/13/2021   17:13:33  ( -80.98, 138.35)    1.70                18
 02/13/2021   18:04:21   (  80.98, -54.29) 02/13/2021   18:04:12  (  80.99, -54.12)    3.15                 9
 02/13/2021   18:54:53   ( -80.98, 113.11) 02/13/2021   18:54:54  ( -80.99, 113.23)    2.51                 1
 02/13/2021   19:45:24   (  80.99, -79.79) 02/13/2021   19:45:34  (  80.99, -79.61)    3.30                10
 02/13/2021   20:35:56   ( -80.99,  87.60) 02/13/2021   20:36:16  ( -80.99,  87.74)    2.47                20
 02/13/2021   21:26:26   (  80.99,-104.93) 02/13/2021   21:26:56  (  80.98,-105.10)    3.06                30
 02/13/2021   22:16:58   ( -80.99,  62.46) 02/13/2021   22:17:37  ( -81.00,  62.62)    2.98                39
 02/13/2021   23:07:28   (  80.98,-130.07) 02/13/2021   23:08:17  (  80.99,-130.22)    2.74                49
 02/13/2021   23:58:01   ( -81.00,  36.95) 02/13/2021   23:58:59  ( -80.99,  37.13)    3.26                58
 02/14/2021   00:48:31   (  80.99,-155.58) 02/14/2021   00:49:39  (  80.98,-155.71)    2.66                68