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

Fluvial Fan on Crater Floor as Seen in THEMIS Image I03235002: ESP_025309_2155 ESP_024887_2155 (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
35.15	304.	-17.	-8.15	41.4	41.4
Pitted Central Uplift: ESP_025069_2250 ESP_025135_2250 (Interval in Earth days: 6)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
44.67	12.7	4.58	-10.1	43.4	44.3
Flow Ridges in Nilosyrtis: ESP_025291_2100 ESP_027823_2100 (Interval in Earth days: 197)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
29.75	74.5	1.68	-23.1	38.8	48.8
Intracrater Sand Dunes and Patch Changes: ESP_024838_1630 ESP_024693_1630 (Interval in Earth days: 11)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-16.7	207.	0.91	-12.4	48.8	47.8
Proposed Site for Future Exploration in Ladon Valles: ESP_024728_1595 ESP_024227_1595 (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
-20.5	329.	21.3	-1.13	48.3	42.5
Patch of Rocky Ground: ESP_024922_1570 ESP_034482_1570 (Interval in Earth days: 745)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-22.8	75.5	0	26.21	53.9	61.8
Intracrater Dunes Superposed on Ridges on Fan Surface: ESP_024913_1580 ESP_025625_1580 (Interval in Earth days: 56)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-21.5	320.	7.35	29.03	52.5	59.4
Scarp around Crater Ejecta as Seen in CTX Image: ESP_024628_1720 ESP_024839_1720 (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
-7.78	179.	6.80	-4.63	41.1	44.4
Sand Dune Changes in Hellespontus Montes: ESP_024686_1340 ESP_024462_1340 (Interval in Earth days: 18)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
-45.4	38.8	28.3	-5.74	64.8	63.1
Impact and Gully Monitoring in Acidalia Region: ESP_024728_2260 ESP_027207_2260 (Interval in Earth days: 193)
Center lat.	Center long.	1st half roll angle	2nd half roll angle	1st half incidence angle	2nd half incidence angle
45.64	324.	-7.1	8.829	47.0	43.1
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