HiRISE | Stereo Pairs

Stereo Pairs

An explanation of stereo pairs and their use (PDF)

Planned stereo pairs have suitable stereo convergence angles and illumination by design. In addition to planned stereo pairs, the Pairendipity software can identify overlapping HiRISE images that are serendipitously suitable for stereo processing and find stereo pairs within the CTX dataset.

Planned HiRISE stereo pairs are listed in the “Stereo Pair List (CSV)” link below. Since this list is based on produced stereo anaglyphs it also contains a few serendipitous pairs that underwent special processing. Most serendipitous HiRISE stereo pairs are listed in the “Pairendipity Stereo” link, while CTX stereo pairs are listed in “Pairendipity CTX Stereo”.

Images taken close together in time minimize illumination and frost differences and are especially useful (see the Delta-Days column in the Pairendipity files or difference the orbit numbers in the image IDs in the Stereo Pair List file). Stereo pairs with both images planned within the same 14-day (168-orbit) operations cycle are known as SPORCs.

Stereo Pair List (csv) Pairendipity Stereo Pairendipity CTX Stereo SPORCs

Tharsis Region Lava Flow: ESP_026010_1940 ESP_025733_1940 (Interval in Earth days: 22)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
13.65	250.	-22.	2.608	45.8	42.5
Layered Flow Ejecta: ESP_026109_1575 ESP_026531_1575 (Interval in Earth days: 33)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-22.1	70.4	-8.4	-20.1	65.8	68.2
Flows in Southern Elysium Planitia: ESP_025869_1855 ESP_034651_1855 (Interval in Earth days: 684)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
5.180	138.	4.83	18.46	46.6	46.5
Channel and Fan Near Equator: ESP_026199_1785 ESP_027676_1785 (Interval in Earth days: 116)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-1.50	130.	-6.3	-21.0	52.7	55.8
Light-Toned Hydrated Material along Melas Chasma Wallrock and Floor: ESP_026088_1710 ESP_026022_1710 (Interval in Earth days: 5)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-9.11	282.	-11.	12.10	57.1	55.2
Small Channel System Emanating from Fracture Near Cerberus Fossae: ESP_025855_1885 ESP_025710_1885 (Interval in Earth days: 12)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
8.376	159.	15.9	-4.03	44.2	44.9
Well-Preserved Impact Crater on Northern Plains: ESP_025971_2350 ESP_026103_2350 (Interval in Earth days: 10)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
54.46	225.	8.64	-15.0	43.4	45.1
Small Fresh Crater: ESP_026097_1685 ESP_053828_1685 (Interval in Earth days: 2161)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-11.4	35.5	6.22	-5.08	57.6	58.9
Circular Depression and Mounds with Summit Depressions: ESP_025822_2165 ESP_027101_2165 (Interval in Earth days: 100)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
35.99	338.	-5.1	17.38	40.3	40.9
Western Portion of Well-Preserved 15-Kilometer Crater Near Alba Mons: ESP_026063_2195 ESP_026340_2195 (Interval in Earth days: 21)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
39.08	238.	-7.9	-27.6	40.8	42.9
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