Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 17.  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   ( -70.31, -49.71) 01/18/2023   03:03:46  ( -70.31, -49.75)    1.66                35
 01/18/2023   03:53:55   (  70.19, 117.78) 01/18/2023   03:53:10  (  70.20, 117.74)    1.44                45
 01/20/2023   15:57:05   ( -70.31, 116.81) 01/20/2023   15:57:47  ( -70.32, 116.74)    3.44                42
 01/20/2023   16:47:49   (  70.19, -75.70) 01/20/2023   16:47:11  (  70.20, -75.77)    3.02                38
 01/23/2023   04:50:59   ( -70.37, -76.76) 01/23/2023   04:51:46  ( -70.35, -76.75)    1.94                47
 01/23/2023   05:41:42   (  70.20,  90.80) 01/23/2023   05:41:10  (  70.22,  90.73)    3.51                32
 01/25/2023   17:44:53   ( -70.38,  89.73) 01/25/2023   17:45:45  ( -70.38,  89.78)    2.09                52
 01/25/2023   18:35:36   (  70.22,-102.71) 01/25/2023   18:35:09  (  70.25,-102.74)    3.31                27
 01/28/2023   06:38:46   ( -70.36,-103.72) 01/28/2023   06:39:44  ( -70.37,-103.75)    1.54                58
 01/28/2023   07:29:30   (  70.26,  63.75) 01/28/2023   07:29:08  (  70.24,  63.72)    2.92                22
 01/28/2023   08:19:55   ( -69.26,-127.46) 01/28/2023   08:18:49  ( -69.29,-129.92)   96.81                66
 01/30/2023   19:32:39   ( -70.35,  62.82) 01/30/2023   19:33:42  ( -70.37,  62.74)    3.60                63
 01/30/2023   20:23:24   (  70.30,-129.80) 01/30/2023   20:23:05  (  70.28,-129.73)    3.47                19