Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 6 15.  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)
 06/26/2021   02:51:15   ( -81.02,  -5.71) 06/26/2021   02:50:01  ( -80.99,  -6.29)   10.69                74
 06/26/2021   03:41:47   (  81.02, 161.61) 06/26/2021   03:40:39  (  81.01, 161.58)    1.48                68
 06/26/2021   04:32:17   ( -81.02, -30.90) 06/26/2021   04:31:21  ( -81.01, -31.06)    2.87                56
 06/26/2021   05:22:49   (  81.02, 136.43) 06/26/2021   05:22:00  (  81.02, 136.45)    0.21                49
 06/26/2021   06:13:19   ( -81.01, -56.08) 06/26/2021   06:12:42  ( -81.02, -56.19)    2.09                37
 06/26/2021   07:03:51   (  81.02, 111.25) 06/26/2021   07:03:21  (  81.03, 111.31)    1.71                30
 06/26/2021   07:54:22   ( -81.03, -81.63) 06/26/2021   07:54:04  ( -81.01, -81.69)    1.82                18
 06/26/2021   08:44:54   (  81.03,  85.71) 06/26/2021   08:44:43  (  81.02,  85.81)    1.95                11
 06/26/2021   09:35:24   ( -81.02,-106.82) 06/26/2021   09:35:25  ( -81.02,-106.83)    0.25                 1
 06/26/2021   10:25:56   (  81.03,  60.53) 06/26/2021   10:26:04  (  81.03,  60.67)    2.63                 8
 06/26/2021   11:16:26   ( -81.02,-132.00) 06/26/2021   11:16:46  ( -81.03,-131.96)    1.37                20
 06/26/2021   12:06:58   (  81.02,  35.35) 06/26/2021   12:07:26  (  81.02,  35.17)    3.05                28
 06/26/2021   12:57:29   ( -81.03,-157.55) 06/26/2021   12:58:08  ( -81.03,-157.47)    1.81                39
 06/26/2021   13:48:00   (  81.02,  10.17) 06/26/2021   13:48:47  (  81.03,  10.04)    2.72                47
 06/26/2021   14:38:31   ( -81.03, 177.26) 06/26/2021   14:39:29  ( -81.03, 177.40)    2.40                58
 06/26/2021   15:29:03   (  81.03, -15.38) 06/26/2021   15:30:09  (  81.03, -15.47)    1.60                66