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

Gullies and Bedrock in Nirgal Vallis: ESP_020087_1515 ESP_019810_1515 (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
-28.2	320.	-17.	5.588	62.6	63.4
Fan-Shaped Deposits in Bigbee Crater: ESP_039893_1550 ESP_040394_1550 (Interval in Earth days: 40)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-24.7	325.	4.52	21.42	37.5	32.5
Nili Patera Dunes: ESP_039599_1890 ESP_039665_1890 (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
8.823	66.9	2.58	-17.6	54.6	55.2
USGS Dune Database Entry Number 2365-596: ESP_039514_1200 ESP_039791_1200 (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
-59.6	236.	8.44	-2.94	48.3	47.3
Cones on Crater Floor in Terra Sirenum: ESP_039370_1520 ESP_066152_1520 (Interval in Earth days: 2087)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-27.6	203.	3.99	27.94	43.6	39.7
Monitor Defrosting Patterns on Ridges in Region Dubbed Inca City: ESP_039473_0985 ESP_039776_0985 (Interval in Earth days: 23)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-81.4	296.	-7.5	8.443	62.2	60.3
Small Cone in Hydraotes Chaos: ESP_039339_1795 ESP_074826_1795 (Interval in Earth days: 2765)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-0.36	326.	2.28	-23.3	52.1	52.2
Well-Preserved Crater South of Hypanis Valles: ESP_039379_1890 ESP_056930_1890 (Interval in Earth days: 1368)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
8.936	313.	-2.4	22.35	56.9	52.3
Candidate Landing Site for 2020 Mission: ESP_039414_1965 ESP_039770_1965 (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
16.47	76.6	0.89	17.44	60.9	56.8
Western Rim of Palikir Crater: ESP_039502_1380 ESP_039779_1380 (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
-41.5	202.	-2.2	-18.4	43.1	41.5
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