Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 4 11.  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)
 04/20/2021   22:03:00   (  81.00,-113.66) 04/20/2021   22:01:53  (  81.01,-113.60)    1.31                67
 04/20/2021   22:53:31   ( -81.00,  53.73) 04/20/2021   22:52:33  ( -81.01,  53.80)    1.81                58
 04/20/2021   23:44:03   (  81.01,-139.18) 04/20/2021   23:43:15  (  81.00,-139.09)    1.96                48
 04/21/2021   00:34:34   ( -81.01,  28.21) 04/21/2021   00:33:55  ( -81.00,  28.31)    1.87                39
 04/21/2021   01:25:05   (  81.00,-164.34) 04/21/2021   01:24:36  (  81.01,-164.22)    2.17                29
 04/21/2021   02:15:36   ( -81.00,   3.06) 04/21/2021   02:15:16  ( -81.01,   3.18)    2.38                20
 04/21/2021   03:06:08   (  81.02, 170.13) 04/21/2021   03:05:58  (  81.00, 170.29)    3.24                10
 04/21/2021   03:56:39   ( -81.01, -22.46) 04/21/2021   03:56:38  ( -81.00, -22.31)    2.95                 1
 04/21/2021   04:47:10   (  81.01, 144.97) 04/21/2021   04:47:19  (  81.01, 145.16)    3.34                 9
 04/21/2021   05:37:41   ( -81.01, -47.62) 04/21/2021   05:37:59  ( -81.01, -47.43)    3.23                18
 04/21/2021   06:28:12   (  81.01, 119.81) 04/21/2021   06:28:41  (  81.00, 119.67)    2.50                29
 04/21/2021   07:18:43   ( -81.01, -72.77) 04/21/2021   07:19:21  ( -81.01, -72.92)    2.66                38
 04/21/2021   08:09:14   (  81.00,  94.65) 04/21/2021   08:10:02  (  81.01,  94.55)    2.18                48
 04/21/2021   08:59:45   ( -81.00, -97.93) 04/21/2021   09:00:42  ( -81.02, -98.05)    2.76                57
 04/21/2021   09:50:17   (  81.02,  69.12) 04/21/2021   09:51:24  (  81.01,  69.05)    1.58                67