Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and METOP-C
TLE Epoch: 2023 9 20.  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)
 09/20/2023   03:59:12   (  72.71, 111.70) 09/20/2023   03:59:07  (  72.72, 111.73)    1.80                 5
 09/20/2023   04:49:56   ( -72.73, -81.02) 09/20/2023   04:49:48  ( -72.73, -80.93)    2.72                 8
 09/20/2023   05:40:42   (  72.71,  86.32) 09/20/2023   05:40:29  (  72.70,  86.33)    2.01                13
 09/20/2023   06:31:25   ( -72.68,-106.30) 09/20/2023   06:31:10  ( -72.70,-106.33)    2.71                15
 09/20/2023   07:22:11   (  72.67,  61.04) 09/20/2023   07:21:51  (  72.67,  60.94)    3.31                20
 09/20/2023   08:12:55   ( -72.68,-131.68) 09/20/2023   08:12:32  ( -72.68,-131.72)    1.72                23
 09/20/2023   09:03:41   (  72.67,  35.65) 09/20/2023   09:03:12  (  72.69,  35.65)    2.27                29
 09/20/2023   09:54:25   ( -72.69,-157.07) 09/20/2023   09:53:53  ( -72.70,-157.01)    2.06                32
 09/20/2023   10:45:11   (  72.68,  10.27) 09/20/2023   10:44:34  (  72.67,  10.25)    1.39                37
 09/20/2023   11:35:55   ( -72.69, 177.55) 09/20/2023   11:35:15  ( -72.67, 177.59)    2.77                40
 09/20/2023   12:26:40   (  72.68, -15.12) 09/20/2023   12:25:54  (  72.69, -15.04)    2.73                46
 09/20/2023   13:17:23   ( -72.65, 152.27) 09/20/2023   13:16:36  ( -72.65, 152.20)    2.35                47
 09/20/2023   14:08:09   (  72.64, -40.40) 09/20/2023   14:07:16  (  72.66, -40.43)    3.14                53
 09/20/2023   14:58:53   ( -72.65, 126.89) 09/20/2023   14:57:57  ( -72.67, 126.91)    2.03                56
 09/20/2023   15:49:39   (  72.64, -65.78) 09/20/2023   15:48:38  (  72.64, -65.83)    1.64                61
 09/20/2023   16:40:23   ( -72.66, 101.50) 09/20/2023   16:39:19  ( -72.64, 101.51)    1.71                64
 09/20/2023   17:31:09   (  72.65, -91.17) 09/20/2023   17:29:59  (  72.66, -91.12)    2.17                70
 09/20/2023   18:21:52   ( -72.61,  76.22) 09/20/2023   18:20:41  ( -72.62,  76.12)    3.32                71
 09/20/2023   19:12:37   (  72.55,-116.35) 09/20/2023   19:11:23  (  72.53,-116.72)   12.68                74
 09/20/2023   20:03:19   ( -72.47,  51.14) 09/20/2023   20:02:06  ( -72.44,  50.42)   24.37                73
 09/20/2023   20:54:01   (  72.25,-141.12) 09/20/2023   20:52:50  (  72.25,-142.62)   50.74                71
 09/20/2023   21:44:43   ( -72.16,  26.36) 09/20/2023   21:43:33  ( -72.16,  24.53)   62.24                70
 09/20/2023   22:35:24   (  71.89,-165.82) 09/20/2023   22:34:18  (  71.91,-168.60)   95.92                66