Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 6 25.  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)
 06/26/2023   12:39:33   (  71.54, -16.12) 06/26/2023   12:40:40  (  71.43, -13.98)   76.73                67
 06/26/2023   13:30:01   ( -70.71, 152.60) 06/26/2023   13:30:17  ( -70.72, 152.57)    1.26                16
 06/26/2023   14:20:45   (  70.60, -39.91) 06/26/2023   14:19:39  (  70.62, -39.90)    2.31                66
 06/29/2023   01:33:13   (  70.80, 151.66) 06/29/2023   01:34:10  (  70.80, 151.69)    0.89                57
 06/29/2023   02:23:55   ( -70.70, -40.86) 06/29/2023   02:23:36  ( -70.70, -40.82)    1.79                19
 07/01/2023   14:27:06   (  70.75, -41.73) 07/01/2023   14:27:29  (  70.74, -41.76)    1.63                23
 07/01/2023   15:17:48   ( -70.65, 125.75) 07/01/2023   15:16:55  ( -70.64, 125.75)    0.95                53
 07/04/2023   02:30:15   ( -70.80, -42.60) 07/04/2023   02:31:25  ( -70.81, -42.66)    2.44                70
 07/04/2023   03:20:59   (  70.70, 124.87) 07/04/2023   03:20:47  (  70.70, 124.84)    1.18                12
 07/04/2023   04:11:31   ( -70.07, -66.82) 07/04/2023   04:10:21  ( -70.16, -68.28)   56.24                70
 07/06/2023   15:24:08   ( -70.81, 123.91) 07/06/2023   15:24:41  ( -70.80, 123.97)    2.98                33
 07/06/2023   16:14:51   (  70.66, -68.55) 07/06/2023   16:14:03  (  70.68, -68.53)    2.20                48