Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-B
TLE Epoch: 2023 1 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(METOP-B) METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2023   05:10:42   (  72.68,  94.33) 01/30/2023   05:10:03  (  72.69,  94.30)    1.43                39
 01/30/2023   06:01:26   ( -72.69, -98.37) 01/30/2023   06:00:45  ( -72.68, -98.38)    0.61                41
 01/30/2023   06:52:12   (  72.69,  68.94) 01/30/2023   06:51:25  (  72.66,  68.91)    2.64                47
 01/30/2023   07:42:56   ( -72.70,-123.76) 01/30/2023   07:42:06  ( -72.71,-123.67)    3.53                50
 01/30/2023   08:33:42   (  72.70,  43.55) 01/30/2023   08:32:46  (  72.69,  43.63)    2.69                56
 01/30/2023   09:24:26   ( -72.70,-149.15) 01/30/2023   09:23:28  ( -72.69,-149.06)    3.71                58
 01/30/2023   10:15:11   (  72.65,  18.26) 01/30/2023   10:14:08  (  72.67,  18.24)    1.82                63
 01/30/2023   11:05:55   ( -72.66,-174.44) 01/30/2023   11:04:50  ( -72.66,-174.45)    0.26                65
 01/30/2023   11:56:41   (  72.66,  -7.13) 01/30/2023   11:55:30  (  72.64,  -7.15)    2.01                71
 01/30/2023   12:47:25   ( -72.67, 160.17) 01/30/2023   12:46:12  ( -72.64, 160.17)    3.35                73
 01/30/2023   13:38:07   (  72.46, -32.11) 01/30/2023   13:36:55  (  72.47, -32.85)   24.73                72
 01/30/2023   14:28:50   ( -72.42, 135.29) 01/30/2023   14:27:38  ( -72.41, 134.37)   30.95                72
 01/30/2023   15:19:31   (  72.17, -56.90) 01/30/2023   15:18:22  (  72.19, -58.74)   62.66                69
 01/30/2023   16:10:14   ( -72.13, 110.50) 01/30/2023   16:09:05  ( -72.13, 108.49)   68.65                69