Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/20/2023

Index	Date (NPP)	Time (NPP)	Lat,Lon (NPP)	SZA (NPP )	Date (LANDSAT-9)	Time (LANDSAT-9)	Lat,Lon (LANDSAT-9)	SZA (LANDSAT-9 )	Distance(km)	Time Diff (sec)
1	02/20/2023	05:43:21	70.33, 90.51	81.37	02/20/2023	05:44:32	70.28, 90.58	81.31	5.66	71
2	02/20/2023	06:34:02	-70.18,-101.95	98.80	02/20/2023	06:34:02	-70.16,-101.95	98.82	2.43	0
3	02/20/2023	07:24:43	69.91, 65.78	80.91	02/20/2023	07:23:31	69.95, 65.39	80.97	15.53	72
4	02/22/2023	22:00:14	70.25,-153.59	80.32	02/22/2023	22:00:57	70.27,-153.54	80.33	2.84	43
5	02/22/2023	22:50:56	-70.16, 13.87	99.80	02/22/2023	22:50:27	-70.15, 13.93	99.80	2.16	29
6	02/25/2023	13:26:36	-71.03, 153.62	99.84	02/25/2023	13:27:43	-70.93, 155.70	100.03	76.15	67
7	02/25/2023	14:17:07	70.24, -37.79	79.32	02/25/2023	14:17:21	70.22, -37.71	79.29	3.49	14
8	02/25/2023	15:07:48	-70.09, 129.76	100.86	02/25/2023	15:06:51	-70.11, 129.76	100.83	1.88	57
9	02/28/2023	05:43:16	-70.29, -89.39	101.63	02/28/2023	05:44:18	-70.30, -89.34	101.63	2.52	62
10	02/28/2023	06:34:00	70.19, 78.08	78.25	02/28/2023	06:33:45	70.19, 78.15	78.26	2.56	15
11	02/28/2023	07:24:33	-69.61,-113.74	102.37	02/28/2023	07:23:22	-69.70,-114.91	102.23	46.35	71
12	03/02/2023	22:00:09	-70.25, 26.47	102.70	03/02/2023	22:00:42	-70.24, 26.47	102.71	0.57	33
13	03/02/2023	22:50:53	70.14,-166.06	77.18	03/02/2023	22:50:09	70.12,-166.05	77.17	1.90	44
14	03/05/2023	13:26:22	70.41, -25.33	76.46	03/05/2023	13:27:34	70.36, -25.09	76.38	11.23	72
15	03/05/2023	14:17:02	-70.21, 142.31	103.78	03/05/2023	14:17:05	-70.19, 142.31	103.79	1.69	3
16	03/05/2023	15:07:45	70.05, -50.14	76.05	03/05/2023	15:06:32	70.07, -50.21	76.09	3.59	73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/20/2023

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/20/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9