Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 7 19.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/19/2023   05:21:35   (  71.52,  93.37) 07/19/2023   05:22:43  (  71.42,  95.27)   67.76                68
 07/19/2023   06:12:05   ( -70.80, -98.07) 07/19/2023   06:12:18  ( -70.81, -98.04)    2.04                13
 07/19/2023   07:02:49   (  70.69,  69.41) 07/19/2023   07:01:41  (  70.67,  69.41)    2.65                68
 07/21/2023   18:15:15   (  70.84, -98.93) 07/21/2023   18:16:08  (  70.86, -98.95)    3.11                53
 07/21/2023   19:05:57   ( -70.74,  68.55) 07/21/2023   19:05:34  ( -70.74,  68.52)    1.21                23
 07/24/2023   06:18:41   ( -71.82,-101.42) 07/24/2023   06:19:46  ( -71.72, -98.58)   99.54                65
 07/24/2023   07:09:08   (  70.84,  67.60) 07/24/2023   07:09:23  (  70.82,  67.66)    2.62                15
 07/24/2023   07:59:49   ( -70.68,-124.83) 07/24/2023   07:58:49  ( -70.70,-124.87)    2.57                60
 07/26/2023   19:12:15   ( -70.89,  66.73) 07/26/2023   19:13:14  ( -70.90,  66.77)    1.92                59
 07/26/2023   20:02:58   (  70.74,-125.71) 07/26/2023   20:02:37  (  70.76,-125.78)    2.96                21
 07/26/2023   20:53:24   ( -69.80,  43.07) 07/26/2023   20:52:18  ( -69.81,  40.52)   97.96                66
 07/29/2023   08:06:07   ( -70.85,-126.68) 07/29/2023   08:06:28  ( -70.86,-126.62)    2.39                21
 07/29/2023   08:56:50   (  70.70,  40.88) 07/29/2023   08:55:51  (  70.72,  40.83)    2.39                59
 07/31/2023   20:09:17   (  70.92,-127.59) 07/31/2023   20:10:16  (  70.92,-127.51)    2.81                59
 07/31/2023   20:59:59   ( -70.81,  39.91) 07/31/2023   20:59:42  ( -70.79,  39.95)    2.87                17