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

Intracrater Dune Changes: ESP_035592_1900 ESP_035948_1900 (Interval in Earth days: 28)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
9.747	8.03	3.25	18.32	49.3	48.9
Wall of a Caldera on Summit of Ascraeus Mons: ESP_035306_1915 ESP_080288_1920 (Interval in Earth days: 3505)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
11.59	255.	7.67	17.48	47.3	51.0
Outflow Deposit from Hrad Vallis: ESP_035376_2145 ESP_034031_2145 (Interval in Earth days: 105)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
34.04	141.	1.79	14.40	41.9	39.4
Possible Terraced Crater in Arcadia Planitia: ESP_035585_2275 ESP_036495_2275 (Interval in Earth days: 71)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
47.36	193.	1.38	-13.4	43.1	50.2
Small Lobe on Crater Floor at Terminus of Valley: ESP_035369_1940 ESP_035870_1940 (Interval in Earth days: 39)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
14.04	335.	1.87	28.76	46.9	45.9
Crater Ejecta Degradation: ESP_035334_2355 ESP_036257_2355 (Interval in Earth days: 72)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
55.02	206.	-6.0	9.374	45.1	48.0
Wall of Orson Welles Crater: ESP_035594_1790 ESP_071042_1790 (Interval in Earth days: 2761)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-0.76	314.	0	19.68	54.9	57.3
Plethora of Intersecting Mesa-Forming Ridges: ESP_035467_1690 ESP_035190_1690 (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
-10.8	185.	-20.	8.472	62.2	59.4
Candidate Landing Site for 2020 Mission: ESP_035304_1950 ESP_036148_1950 (Interval in Earth days: 66)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
14.70	309.	8.61	-3.59	45.9	49.1
Hebes Chasma: ESP_035371_1790 ESP_035872_1790 (Interval in Earth days: 39)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-1.01	283.	-8.5	22.94	55.1	53.9
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