Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 12 22.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2021   18:44:21   (  77.40,-124.69) 12/22/2021   18:45:32  (  77.44,-123.20)   36.43                71
 12/22/2021   19:35:21   ( -77.58,  43.47) 12/22/2021   19:36:19  ( -77.56,  43.57)    3.23                58
 12/22/2021   20:26:16   (  77.61,-149.14) 12/22/2021   20:27:05  (  77.58,-149.19)    3.35                49
 12/22/2021   21:17:21   ( -77.59,  18.00) 12/22/2021   21:17:50  ( -77.61,  17.96)    2.77                29
 12/22/2021   22:08:16   (  77.61,-174.61) 12/22/2021   22:08:35  (  77.59,-174.60)    2.98                19
 12/22/2021   22:59:20   ( -77.60,  -7.46) 12/22/2021   22:59:19  ( -77.62,  -7.45)    2.81                 1
 12/22/2021   23:50:15   (  77.62, 159.93) 12/22/2021   23:50:04  (  77.59, 159.99)    3.15                11
 12/23/2021   00:41:20   ( -77.60, -32.93) 12/23/2021   00:40:49  ( -77.63, -32.86)    3.45                31
 12/23/2021   01:32:15   (  77.63, 134.46) 12/23/2021   01:31:35  (  77.64, 134.38)    2.84                40
 12/23/2021   02:23:19   ( -77.65, -58.19) 12/23/2021   02:22:19  ( -77.64, -58.27)    2.19                60
 12/23/2021   03:14:15   (  77.63, 108.99) 12/23/2021   03:13:05  (  77.65, 108.97)    2.34                70