Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 16.  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)
 01/18/2023   03:03:11   ( -70.34, -49.75) 01/18/2023   03:03:45  ( -70.33, -49.72)    1.22                34
 01/18/2023   03:53:55   (  70.22, 117.74) 01/18/2023   03:53:09  (  70.22, 117.77)    1.41                46
 01/20/2023   15:57:05   ( -70.33, 116.77) 01/20/2023   15:57:46  ( -70.34, 116.76)    0.65                41
 01/20/2023   16:47:49   (  70.22, -75.74) 01/20/2023   16:47:10  (  70.22, -75.75)    0.47                39
 01/23/2023   04:50:59   ( -70.34, -76.72) 01/23/2023   04:51:46  ( -70.35, -76.74)    1.14                47
 01/23/2023   05:41:43   (  70.23,  90.76) 01/23/2023   05:41:10  (  70.22,  90.73)    1.31                33
 01/25/2023   17:44:53   ( -70.36,  89.76) 01/25/2023   17:45:45  ( -70.37,  89.76)    0.53                52
 01/25/2023   18:35:37   (  70.26,-102.76) 01/25/2023   18:35:09  (  70.23,-102.77)    2.39                28
 01/28/2023   06:38:47   ( -70.40,-103.77) 01/28/2023   06:39:43  ( -70.39,-103.71)    2.02                56
 01/28/2023   07:29:30   (  70.24,  63.79) 01/28/2023   07:29:07  (  70.25,  63.75)    2.10                23