Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2023 11 16.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 11/17/2023   07:34:31   (  70.00,  62.39) 11/17/2023   07:35:39  (  69.99,  62.45)    2.61                68
 11/17/2023   08:25:12   ( -69.85,-130.07) 11/17/2023   08:25:09  ( -69.88,-130.07)    3.25                 3
 11/17/2023   09:15:52   (  69.52,  37.72) 11/17/2023   09:14:40  (  69.55,  37.13)   23.20                72
 11/19/2023   23:51:27   (  69.90, 178.30) 11/19/2023   23:52:08  (  69.91, 178.22)    3.08                41
 11/20/2023   00:42:09   ( -69.80, -14.24) 11/20/2023   00:41:38  ( -69.80, -14.30)    2.27                31
 11/22/2023   15:17:51   ( -70.54, 125.74) 11/22/2023   15:19:00  ( -70.45, 127.25)   56.80                69
 11/22/2023   16:08:25   (  69.91, -65.96) 11/22/2023   16:08:35  (  69.91, -65.89)    2.91                10
 11/22/2023   16:59:06   ( -69.76, 101.58) 11/22/2023   16:58:06  ( -69.74, 101.52)    2.97                60
 11/25/2023   07:34:37   ( -69.93,-117.54) 11/25/2023   07:35:36  ( -69.93,-117.61)    2.43                59
 11/25/2023   08:25:21   (  69.83,  49.92) 11/25/2023   08:25:03  (  69.82,  49.88)    1.84                18
 11/25/2023   09:15:52   ( -69.14,-141.77) 11/25/2023   09:14:43  ( -69.16,-143.37)   63.30                69
 11/27/2023   23:51:33   ( -69.91,  -1.75) 11/27/2023   23:52:01  ( -69.93,  -1.72)    2.45                28
 11/28/2023   00:42:17   (  69.81, 165.71) 11/28/2023   00:41:28  (  69.81, 165.77)    2.04                49
 11/30/2023   15:17:47   (  69.95, -53.36) 11/30/2023   15:18:58  (  69.94, -53.44)    2.94                71
 11/30/2023   16:08:29   ( -69.84, 114.12) 11/30/2023   16:08:28  ( -69.84, 114.05)    2.53                 1
 11/30/2023   16:59:09   (  69.53, -78.11) 11/30/2023   16:57:57  (  69.61, -78.62)   21.47                72