Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 11.  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)
 01/13/2023   00:24:56   (  71.24, 168.42) 01/13/2023   00:26:02  (  71.15, 170.92)   90.06                66
 01/13/2023   01:15:22   ( -70.31, -22.74) 01/13/2023   01:15:41  ( -70.30, -22.70)    1.76                19
 01/13/2023   02:06:06   (  70.19, 144.75) 01/13/2023   02:05:05  (  70.19, 144.80)    1.91                61
 01/15/2023   14:09:17   ( -70.33, 143.74) 01/15/2023   14:09:44  ( -70.31, 143.77)    2.83                27
 01/15/2023   15:00:01   (  70.22, -48.77) 01/15/2023   14:59:08  (  70.19, -48.73)    3.23                53
 01/18/2023   03:03:11   ( -70.31, -49.71) 01/18/2023   03:03:46  ( -70.34, -49.71)    3.39                35
 01/18/2023   03:53:55   (  70.20, 117.77) 01/18/2023   03:53:10  (  70.22, 117.77)    2.29                45
 01/20/2023   15:57:06   ( -70.34, 116.75) 01/20/2023   15:57:48  ( -70.34, 116.76)    0.89                42
 01/20/2023   16:47:50   (  70.24, -75.77) 01/20/2023   16:47:12  (  70.21, -75.77)    2.88                38
 01/23/2023   04:51:00   ( -70.34, -76.72) 01/23/2023   04:51:49  ( -70.36, -76.74)    2.51                49
 01/23/2023   05:41:44   (  70.23,  90.75) 01/23/2023   05:41:13  (  70.23,  90.73)    0.75                31