Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 7 18.  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)
 07/18/2021   04:27:07   (  81.02, 150.45) 07/18/2021   04:25:55  (  81.02, 150.45)    0.05                72
 07/18/2021   05:17:34   ( -81.02, -42.17) 07/18/2021   05:16:36  ( -81.03, -42.16)    0.34                58
 07/18/2021   06:08:09   (  81.02, 125.26) 07/18/2021   06:07:16  (  81.03, 125.31)    1.58                53
 07/18/2021   06:58:36   ( -81.02, -67.36) 07/18/2021   06:57:57  ( -81.03, -67.29)    1.93                39
 07/18/2021   07:49:12   (  81.03,  99.70) 07/18/2021   07:48:38  (  81.02,  99.81)    2.14                34
 07/18/2021   08:39:39   ( -81.03, -92.92) 07/18/2021   08:39:19  ( -81.03, -92.80)    2.22                20
 07/18/2021   09:30:14   (  81.03,  74.51) 07/18/2021   09:29:59  (  81.03,  74.67)    2.85                15
 07/18/2021   10:20:41   ( -81.03,-118.11) 07/18/2021   10:20:40  ( -81.04,-117.94)    3.09                 1
 07/18/2021   11:11:16   (  81.03,  49.32) 07/18/2021   11:11:21  (  81.03,  49.16)    2.62                 5
 07/18/2021   12:01:43   ( -81.03,-143.30) 07/18/2021   12:02:02  ( -81.03,-143.44)    2.40                19
 07/18/2021   12:52:18   (  81.02,  24.12) 07/18/2021   12:52:42  (  81.03,  24.03)    2.03                24
 07/18/2021   13:42:45   ( -81.02,-168.50) 07/18/2021   13:43:23  ( -81.04,-168.58)    2.02                38
 07/18/2021   14:33:21   (  81.04,  -1.44) 07/18/2021   14:34:04  (  81.03,  -1.48)    1.31                43
 07/18/2021   15:23:48   ( -81.04, 165.94) 07/18/2021   15:24:45  ( -81.03, 165.91)    0.98                57
 07/18/2021   16:14:23   (  81.03, -26.63) 07/18/2021   16:15:25  (  81.04, -26.61)    0.29                62