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

Candidate Recent Impact Site: ESP_074701_1840 ESP_075901_1840 (Interval in Earth days: 93)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
3.830	135.	21.8	7.968	52.4	40.1
Impact-Related Deposits and Flows Northeast of Ascraeus Mons: ESP_074881_1985 ESP_075382_1985 (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
18.36	260.	-3.6	24.23	61.4	54.4
Extra-Crater Sinuous Ridge: ESP_074959_1035 ESP_075434_1035 (Interval in Earth days: 37)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-76.4	308.	4.75	-17.0	57.4	60.1
South Polar Layered Deposits Impact Site: ESP_074938_0980 ESP_075268_0980 (Interval in Earth days: 26)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-82.0	175.	-7.9	-21.7	62.0	63.8
Mounds and Pits in Residual Ice Cap: ESP_074884_0930 ESP_074883_0930 (Interval in Earth days: 0)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-86.9	235.	4.93	20.67	65.0	63.6
Small Ridge near Licus Vallis: ESP_074741_1775 ESP_074807_1775 (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
-2.59	125.	2.84	-23.6	50.1	51.3
Candidate Lake Deposits Fed by Alluvial Fans: ESP_074827_1655 ESP_073970_1655 (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
-14.5	298.	4.36	-6.62	44.2	54.0
Nirgal Vallis Bedrock Exposures: ESP_074945_1515 ESP_075156_1515 (Interval in Earth days: 16)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-28.1	318.	2.97	-4.13	40.2	38.6
Channel in Huygens Crater: ESP_074981_1625 ESP_075192_1625 (Interval in Earth days: 17)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-17.2	53.7	6.87	0.528	41.4	39.5
Possible Secondary Craters: ESP_074952_1940 ESP_075875_1940 (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
13.83	122.	-5.6	19.58	57.9	45.4
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