Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 15.  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   14:09:16   ( -70.28, 143.82) 01/15/2023   14:09:44  ( -70.30, 143.76)    2.68                28
 01/15/2023   15:00:00   (  70.16, -48.69) 01/15/2023   14:59:08  (  70.18, -48.74)    2.84                52
 01/18/2023   03:03:11   ( -70.32, -49.72) 01/18/2023   03:03:46  ( -70.31, -49.75)    1.34                35
 01/18/2023   03:53:55   (  70.20, 117.76) 01/18/2023   03:53:10  (  70.19, 117.74)    1.25                45
 01/20/2023   15:57:06   ( -70.36, 116.73) 01/20/2023   15:57:47  ( -70.34, 116.77)    2.45                41
 01/20/2023   16:47:49   (  70.20, -75.71) 01/20/2023   16:47:11  (  70.22, -75.75)    3.10                38
 01/23/2023   04:51:00   ( -70.36, -76.76) 01/23/2023   04:51:48  ( -70.34, -76.76)    2.69                48
 01/23/2023   05:41:44   (  70.26,  90.72) 01/23/2023   05:41:11  (  70.27,  90.79)    3.10                33
 01/25/2023   17:44:53   ( -70.38,  89.74) 01/25/2023   17:45:47  ( -70.35,  89.73)    2.66                54
 01/25/2023   18:35:37   (  70.27,-102.79) 01/25/2023   18:35:10  (  70.27,-102.72)    2.63                27
 01/28/2023   06:38:47   ( -70.40,-103.78) 01/28/2023   06:39:46  ( -70.38,-103.74)    2.28                59
 01/28/2023   07:29:30   (  70.24,  63.77) 01/28/2023   07:29:10  (  70.24,  63.72)    2.01                20