Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/18/2017
Index Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 04/20/2017 06:08:09 -70.83, -94.80 120.86 04/20/2017 06:07:00 -70.92, -96.72 120.71 70.62 69
2 04/20/2017 06:57:47 70.13, 71.80 58.45 04/20/2017 06:57:31 70.13, 71.85 58.46 1.80 16
3 04/20/2017 07:47:17 -70.01,-120.72 121.68 04/20/2017 07:48:13 -70.03,-120.68 121.66 2.73 56
4 04/22/2017 22:24:47 -70.25, 20.21 122.33 04/22/2017 22:23:43 -70.25, 20.13 122.32 3.01 64
5 04/22/2017 23:14:15 70.09,-172.37 57.50 04/22/2017 23:14:26 70.09,-172.32 57.51 2.20 11
6 04/23/2017 00:03:51 -69.65, -5.35 122.94 04/23/2017 00:05:01 -69.62, -4.29 122.99 40.98 70
7 04/25/2017 14:41:15 -70.21, 136.03 123.25 04/25/2017 14:40:38 -70.21, 135.97 123.25 2.54 37
8 04/25/2017 15:30:43 70.04, -56.56 56.58 04/25/2017 15:31:21 70.05, -56.49 56.58 2.87 38
9 04/28/2017 06:08:07 70.54, 84.77 56.23 04/28/2017 06:06:56 70.59, 83.81 56.31 35.74 71
10 04/28/2017 06:57:42 -70.16,-108.15 124.15 04/28/2017 06:57:32 -70.17,-108.21 124.14 2.20 10
11 04/28/2017 07:47:09 70.05, 59.33 55.73 04/28/2017 07:48:16 70.07, 59.26 55.75 3.59 67
12 04/30/2017 22:24:40 70.21,-159.83 55.08 04/30/2017 22:23:44 70.19,-159.78 55.07 3.25 56
13 04/30/2017 23:14:10 -70.11, 7.66 125.03 04/30/2017 23:14:27 -70.13, 7.62 125.00 3.03 17
14 05/01/2017 00:03:50 69.28, 174.16 54.16 05/01/2017 00:04:57 69.29, 176.17 54.12 78.96 67

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 4/18/2017
SNOs_Map_LANDSAT-8_NPP_20170420.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 04/18/2017 in txt file.

Historical Predictions of SNOs between LANDSAT-8 and NPP

NCC Satellite Simultaneous Nadir Overpasses (SNOs) Prediction Service