Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 12 15.  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   (  77.38,-124.78) 12/22/2021   18:45:31  (  77.43,-123.11)   40.75                70
 12/22/2021   19:35:21   ( -77.57,  43.40) 12/22/2021   19:36:19  ( -77.58,  43.49)    2.42                58
 12/22/2021   20:26:16   (  77.59,-149.24) 12/22/2021   20:27:05  (  77.60,-149.30)    2.22                49
 12/22/2021   21:17:20   ( -77.62,  18.14) 12/22/2021   21:17:49  ( -77.59,  18.08)    3.25                29
 12/22/2021   22:08:16   (  77.59,-174.70) 12/22/2021   22:08:35  (  77.61,-174.71)    1.83                19
 12/22/2021   22:59:20   ( -77.62,  -7.33) 12/22/2021   22:59:19  ( -77.60,  -7.33)    2.67                 1
 12/22/2021   23:50:16   (  77.60, 159.83) 12/22/2021   23:50:05  (  77.62, 159.88)    2.26                11
 12/23/2021   00:41:20   ( -77.63, -32.79) 12/23/2021   00:40:49  ( -77.60, -32.74)    2.74                31
 12/23/2021   01:32:16   (  77.61, 134.37) 12/23/2021   01:31:35  (  77.63, 134.47)    3.19                41
 12/23/2021   02:23:20   ( -77.63, -58.26) 12/23/2021   02:22:20  ( -77.65, -58.35)    3.20                60
 12/23/2021   03:14:15   (  77.65, 109.11) 12/23/2021   03:13:05  (  77.63, 109.06)    2.43                70