Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 5 14.  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)
 05/14/2023   15:17:53   ( -70.69, 125.73) 05/14/2023   15:19:01  ( -70.70, 125.81)    2.75                68
 05/14/2023   16:08:37   (  70.57, -66.76) 05/14/2023   16:08:25  (  70.56, -66.74)    1.05                12
 05/14/2023   16:59:08   ( -69.91, 101.59) 05/14/2023   16:57:59  ( -69.96, 100.06)   58.43                69
 05/17/2023   04:11:48   ( -70.62, -67.64) 05/17/2023   04:12:29  ( -70.64, -67.67)    2.22                41
 05/17/2023   05:02:33   (  70.55,  99.78) 05/17/2023   05:01:52  (  70.55,  99.86)    3.01                41
 05/19/2023   16:15:14   (  71.32, -69.63) 05/19/2023   16:16:22  (  71.19, -67.86)   64.73                68
 05/19/2023   17:05:44   ( -70.61,  98.89) 05/19/2023   17:05:56  ( -70.60,  98.89)    0.77                12
 05/19/2023   17:56:28   (  70.49, -93.61) 05/19/2023   17:55:19  (  70.51, -93.58)    2.12                69
 05/22/2023   05:08:57   (  70.70,  97.94) 05/22/2023   05:09:56  (  70.68,  97.98)    1.98                59
 05/22/2023   05:59:38   ( -70.55, -94.51) 05/22/2023   05:59:22  ( -70.54, -94.59)    3.46                16
 05/22/2023   06:50:06   (  69.59,  74.27) 05/22/2023   06:49:00  (  69.61,  71.77)   96.81                66
 05/24/2023   18:02:52   (  70.65, -95.47) 05/24/2023   18:03:22  (  70.64, -95.47)    1.95                30
 05/24/2023   18:53:34   ( -70.56,  72.00) 05/24/2023   18:52:47  ( -70.55,  72.05)    2.26                47
 05/27/2023   06:06:09   ( -71.04, -96.90) 05/27/2023   06:07:20  ( -70.95, -96.05)   32.53                71
 05/27/2023   06:56:47   (  70.62,  71.10) 05/27/2023   06:56:47  (  70.61,  71.11)    0.61                 0
 05/27/2023   07:47:27   ( -70.42,-121.26) 05/27/2023   07:46:14  ( -70.42,-121.51)    9.43                73