Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 11 20.  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)
 11/26/2021   20:19:01   ( -81.03,  93.13) 11/26/2021   20:17:54  ( -81.02,  93.18)    1.40                67
 11/26/2021   21:09:36   (  81.03, -99.49) 11/26/2021   21:08:35  (  81.02, -99.62)    2.66                61
 11/26/2021   22:00:03   ( -81.03,  67.90) 11/26/2021   21:59:15  ( -81.03,  68.06)    2.79                48
 11/26/2021   22:50:38   (  81.03,-124.72) 11/26/2021   22:49:56  (  81.03,-124.73)    0.44                42
 11/26/2021   23:41:05   ( -81.03,  42.67) 11/26/2021   23:40:37  ( -81.03,  42.57)    1.73                28
 11/27/2021   00:31:40   (  81.03,-149.96) 11/27/2021   00:31:17  (  81.04,-149.85)    1.97                23
 11/27/2021   01:22:07   ( -81.03,  17.43) 11/27/2021   01:21:58  ( -81.03,  17.45)    0.69                 9
 11/27/2021   02:12:42   (  81.03,-175.19) 11/27/2021   02:12:39  (  81.03,-175.34)    2.59                 3
 11/27/2021   03:03:10   ( -81.04,  -8.16) 11/27/2021   03:03:20  ( -81.03,  -8.04)    2.80                10
 11/27/2021   03:53:44   (  81.03, 159.58) 11/27/2021   03:54:00  (  81.04, 159.55)    1.43                16
 11/27/2021   04:44:11   ( -81.03, -33.03) 11/27/2021   04:44:41  ( -81.04, -33.15)    2.51                30
 11/27/2021   05:34:47   (  81.04, 133.98) 11/27/2021   05:35:22  (  81.03, 134.06)    1.74                35
 11/27/2021   06:25:14   ( -81.04, -58.63) 11/27/2021   06:26:03  ( -81.03, -58.64)    1.14                49
 11/27/2021   07:15:49   (  81.04, 108.74) 11/27/2021   07:16:44  (  81.03, 108.57)    3.38                55
 11/27/2021   08:06:16   ( -81.04, -83.86) 11/27/2021   08:07:24  ( -81.04, -83.76)    1.68                68