The two Narrow Angle Cameras (NACs) provide high-resolution (0.5 to 2.0 m/pixel) panchromatic images over a combined 5 km swath. NAC images acquired of the same feature across different incidence, emission, and phase angles make up a photometric site. To extract accurate photometric information from a sequence, a control network is generated to tie each image to a NAC Digital Terrain Model (DTM) [1] derived orthophoto (ground truth), facilitating precise photometric angle calculations using the NAC DTM [2]. A bundle adjustment is performed to correct for pointing errors and image alignment. The images are then map-projected onto high resolution local area NAC DTMs [3].

Browse PNG images for each of the images in the photometric series can be found at http://lroc.sese.asu.edu/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/EXTRAS/BROWSE/NAC_PHO/E090S0155

This page allows you to preview images based on photometric conditions. Azimuth are given as degrees clockwise from north, and incidence angle is arbitrarily signed so that negative indicates sunlight is from the west. Selecting an image in the list will display it on the left and its photometric angles on the 3D display. Images names highlighted in dark gray are a set with similar incidence angles. The sliders in the lower left will also preview different images. The incidence and phase sliders will select from all images, while the emission slider selects within the currently highlighted set.

When citing this product, use the following reference:

Martin, A. C., Boyd, A. K., Robinson, M. S. & the LROC Team (2018). Controlling LROC NAC Photometric Images. In Lunar and Planetary Science Conference (Vol. 49, abstract #1621). https://www.hou.usra.edu/meetings/lpsc2018/pdf/1621.pdf

For more information about this and other RDRs, see the RDR Software Interface Specification (SIS) at http://lroc.sese.asu.edu/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/DOCUMENT/RDRSIS.PDF.

References:

1. Klem, S. M., Henriksen, M. R., Stopar, J., Boyd, A., & Robinson, M. S. (2014). Controlled LROC Narrow Angle Camera High Resolution Mosaics. In Lunar and Planetary Science Conference (Vol. 45, abstract #2885). https://www.hou.usra.edu/meetings/lpsc2014/pdf/2885.pdf

2. Woodham, R. J. (1980). Photometric method for determining surface orientation from multiple images. Optical engineering, 19(1), 191139.doi:10.1117/12.7972479

3. Henriksen, M. R., Gojic, D., Gray, P. E., Wagner, R. V., Robinson, M. S., & the LROC Team (2015). Regional LROC NAC Controlled Mosaic and Absolute Accuracy Assessment. In Second Planetary Data Workshop (Vol. 2, abstract #7033). https://www.hou.usra.edu/meetings/planetdata2015/pdf/7033.pdf

RDR Name	NAC_PHO_E090S0155
Site Name	Apollo 16
Center Lat	9.0
Center Lon	15.0
Minimum Lat	-9.56
Western-most Lon	15.41
Maximum Lat	-8.62
Eastern-most Lon	15.55
DTM Used	NAC_DTM_APOLLO16_2_E091S0155
# Images	65

Images used:

Image ID	Avg Incidence	Avg Emission	Avg Phase	Pixel Scale	Date
M102057602R	80°	1°	79°	1.02 m/px	2009-07-12
M102064759R	81°	22°	59°	1.10 m/px	2009-07-12
M106777343R	28°	1°	27°	1.10 m/px	2009-09-05
M109134835L	8°	2°	8°	0.52 m/px	2009-10-02
M109134835R	8°	1°	8°	0.52 m/px	2009-10-02
M1101110051L	19°	2°	21°	0.86 m/px	2012-09-01
M1105824495R	38°	1°	37°	0.92 m/px	2012-10-25
M1108182629L	65°	2°	67°	0.94 m/px	2012-11-22
M1108182629R	65°	1°	64°	0.94 m/px	2012-11-22
M1114063911L	44°	0°	44°	0.88 m/px	2013-01-29
M1116422215R	18°	4°	15°	0.83 m/px	2013-02-25
M1136456506R	36°	1°	35°	0.90 m/px	2013-10-15
M113853974R	55°	0°	55°	0.51 m/px	2009-11-26
M1149402618L	16°	2°	17°	0.73 m/px	2014-03-14
M116215545R	82°	11°	93°	0.52 m/px	2009-12-23
M1164718010R	11°	1°	10°	0.71 m/px	2014-09-07
M117392541L	83°	13°	70°	0.50 m/px	2010-01-06
M117392541R	83°	16°	67°	0.50 m/px	2010-01-06
M1182366809L	42°	2°	43°	0.88 m/px	2015-03-30
M1192972385L	19°	3°	16°	0.65 m/px	2015-07-31
M1192972385R	20°	6°	14°	0.65 m/px	2015-07-31
M119747321R	55°	19°	74°	0.51 m/px	2010-02-02
M119754107R	56°	22°	35°	0.52 m/px	2010-02-02
M1205906595R	44°	1°	42°	0.71 m/px	2015-12-28
M122108795L	29°	2°	31°	0.49 m/px	2010-03-01
M122108795R	29°	1°	29°	0.49 m/px	2010-03-01
M1221214521L	42°	2°	44°	0.67 m/px	2016-06-22
M1234144364L	68°	2°	70°	0.87 m/px	2016-11-18
M1243554281R	48°	1°	47°	0.87 m/px	2017-03-07
M126825870L	29°	13°	17°	0.49 m/px	2010-04-25
M126825870R	29°	16°	15°	0.50 m/px	2010-04-25
M1277664114L	85°	2°	86°	0.81 m/px	2018-04-06
M1277664114R	85°	1°	84°	0.81 m/px	2018-04-06
M1282366833L	30°	2°	32°	0.79 m/px	2018-05-31
M1282366833R	30°	1°	29°	0.78 m/px	2018-05-31
M129187331L	54°	2°	56°	0.49 m/px	2010-05-22
M129187331R	54°	1°	53°	0.49 m/px	2010-05-22
M1297638087L	28°	2°	30°	0.80 m/px	2018-11-23
M1297638087R	28°	1°	27°	0.80 m/px	2018-11-23
M131548593L	80°	18°	97°	0.50 m/px	2010-06-19
M131548593R	80°	15°	94°	0.50 m/px	2010-06-19
M132732855L	88°	17°	71°	0.52 m/px	2010-07-02
M132732855R	88°	20°	68°	0.53 m/px	2010-07-02
M137441791L	35°	30°	64°	0.57 m/px	2010-08-26
M137448575L	36°	8°	28°	0.51 m/px	2010-08-26
M142164190R	21°	7°	14°	0.50 m/px	2010-10-19
M144524996L	47°	4°	51°	0.50 m/px	2010-11-16
M144524996R	47°	1°	48°	0.50 m/px	2010-11-16
M150415912L	63°	2°	64°	0.48 m/px	2011-01-23
M152770233L	35°	26°	60°	0.52 m/px	2011-02-19
M152770233R	35°	23°	58°	0.51 m/px	2011-02-19
M152777016L	36°	18°	19°	0.50 m/px	2011-02-19
M152777016R	36°	20°	17°	0.50 m/px	2011-02-19
M155131889L	12°	2°	13°	0.48 m/px	2011-03-18
M155131889R	12°	1°	12°	0.48 m/px	2011-03-18
M175179080L	42°	15°	57°	0.40 m/px	2011-11-06
M175179080R	42°	12°	54°	0.40 m/px	2011-11-06
M177535538L	70°	4°	73°	0.47 m/px	2011-12-03
M177535538R	70°	1°	71°	0.47 m/px	2011-12-03
M181058717R	67°	18°	84°	1.01 m/px	2012-01-13
M181065865R	68°	1°	66°	0.96 m/px	2012-01-13
M181073012R	69°	22°	47°	1.04 m/px	2012-01-13
M192817484L	75°	62°	14°	2.18 m/px	2012-05-28
M192846075R	71°	16°	55°	0.93 m/px	2012-05-28
M192853222L	71°	2°	72°	0.90 m/px	2012-05-28

Apollo 16 Photometry Site