Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 13.  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)
 01/15/2023   14:09:17   ( -70.32, 143.75) 01/15/2023   14:09:44  ( -70.31, 143.78)    1.52                27
 01/15/2023   15:00:01   (  70.21, -48.76) 01/15/2023   14:59:08  (  70.20, -48.72)    1.66                53
 01/18/2023   03:03:12   ( -70.35, -49.78) 01/18/2023   03:03:46  ( -70.34, -49.71)    3.12                34
 01/18/2023   03:53:55   (  70.19, 117.78) 01/18/2023   03:53:10  (  70.22, 117.78)    3.40                45
 01/20/2023   15:57:06   ( -70.34, 116.75) 01/20/2023   15:57:48  ( -70.33, 116.75)    1.43                42
 01/20/2023   16:47:50   (  70.23, -75.77) 01/20/2023   16:47:12  (  70.21, -75.77)    3.00                38
 01/23/2023   04:50:59   ( -70.34, -76.73) 01/23/2023   04:51:48  ( -70.35, -76.76)    1.17                49
 01/23/2023   05:41:43   (  70.24,  90.75) 01/23/2023   05:41:12  (  70.22,  90.72)    2.43                31
 01/25/2023   17:44:53   ( -70.35,  89.78) 01/25/2023   17:45:48  ( -70.38,  89.77)    3.44                55
 01/25/2023   18:35:37   (  70.25,-102.75) 01/25/2023   18:35:12  (  70.25,-102.76)    0.34                25