Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-C
TLE Epoch: 2023 12 18.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2023   05:29:00   (  73.32,  87.94) 12/31/2023   05:30:07  (  73.27,  90.33)   76.49                67
 12/31/2023   06:19:41   ( -73.16,-104.40) 12/31/2023   06:20:51  ( -73.13,-102.67)   55.93                70
 12/31/2023   07:10:24   (  73.02,  63.21) 12/31/2023   07:11:35  (  72.95,  64.28)   35.63                71
 12/31/2023   08:01:05   ( -72.86,-129.14) 12/31/2023   08:02:18  ( -72.85,-128.60)   17.80                73
 12/31/2023   08:51:48   (  72.72,  38.47) 12/31/2023   08:53:01  (  72.72,  38.46)    0.24                73
 12/31/2023   09:42:32   ( -72.72,-154.21) 12/31/2023   09:43:42  ( -72.73,-154.20)    0.81                70
 12/31/2023   10:33:18   (  72.73,  13.08) 12/31/2023   10:34:23  (  72.70,  13.08)    3.50                65
 12/31/2023   11:24:02   ( -72.72,-179.59) 12/31/2023   11:25:04  ( -72.70,-179.58)    2.55                62
 12/31/2023   12:14:48   (  72.73, -12.31) 12/31/2023   12:15:44  (  72.72, -12.21)    3.44                56
 12/31/2023   13:05:31   ( -72.68, 155.12) 12/31/2023   13:06:26  ( -72.68, 155.03)    3.18                55
 12/31/2023   13:56:17   (  72.69, -37.59) 12/31/2023   13:57:06  (  72.70, -37.59)    1.30                49
 12/31/2023   14:47:01   ( -72.69, 129.74) 12/31/2023   14:47:47  ( -72.71, 129.74)    2.24                46
 12/31/2023   15:37:47   (  72.70, -62.97) 12/31/2023   15:38:28  (  72.68, -62.98)    2.03                41
 12/31/2023   16:28:31   ( -72.69, 104.35) 12/31/2023   16:29:09  ( -72.68, 104.36)    1.04                38
 12/31/2023   17:19:17   (  72.70, -88.36) 12/31/2023   17:19:49  (  72.70, -88.27)    3.09                32
 12/31/2023   18:10:00   ( -72.65,  79.07) 12/31/2023   18:10:31  ( -72.66,  78.97)    3.61                31
 12/31/2023   19:00:46   (  72.66,-113.64) 12/31/2023   19:01:11  (  72.68,-113.65)    2.80                25
 12/31/2023   19:51:29   ( -72.65,  53.68) 12/31/2023   19:51:51  ( -72.69,  53.68)    3.73                22
 12/31/2023   20:42:15   (  72.66,-139.03) 12/31/2023   20:42:32  (  72.66,-139.04)    0.73                17
 12/31/2023   21:32:59   ( -72.66,  28.30) 12/31/2023   21:33:13  ( -72.66,  28.30)    0.47                14
 12/31/2023   22:23:45   (  72.67,-164.41) 12/31/2023   22:23:53  (  72.68,-164.33)    3.44                 8
 12/31/2023   23:14:29   ( -72.66,   2.91) 12/31/2023   23:14:35  ( -72.64,   2.91)    2.79                 6
 01/01/2024   00:05:15   (  72.67, 170.20) 01/01/2024   00:05:15  (  72.66, 170.29)    3.17                 0
 01/01/2024   00:55:59   ( -72.67, -22.48) 01/01/2024   00:55:56  ( -72.67, -22.38)    3.35                 3
 01/01/2024   01:46:44   (  72.63, 144.92) 01/01/2024   01:46:37  (  72.64, 144.90)    1.17                 7