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.im-ldi.com/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/EXTRAS/BROWSE/NAC_PHO/E223S3203

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.im-ldi.com/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_E223S3203
Site Name	Unnamed New 70m Crater
Center Lat	22.0
Center Lon	320.0
Minimum Lat	-23.04
Western-most Lon	320.07
Maximum Lat	-21.47
Eastern-most Lon	320.50
DTM Used	NAC_DTM_NEWCRATER7_E223S3203
# Images	40

Images used:

Image ID	Avg Incidence	Avg Emission	Avg Phase	Pixel Scale	Date
M1200397227L	71°	2°	72°	1.15 m/px	2015-10-25
M1200397227R	71°	1°	70°	1.15 m/px	2015-10-25
M1221580467L	42°	2°	44°	0.52 m/px	2016-06-26
M1221580467R	42°	1°	41°	0.52 m/px	2016-06-26
M1226285671L	26°	2°	28°	0.52 m/px	2016-08-19
M1226285671R	27°	1°	26°	0.52 m/px	2016-08-19
M1236851704L	40°	18°	56°	0.92 m/px	2016-12-20
M1236851704R	40°	15°	54°	0.91 m/px	2016-12-20
M1236858737L	41°	2°	39°	0.89 m/px	2016-12-20
M1236858737R	41°	5°	37°	0.89 m/px	2016-12-20
M1243912706L	55°	3°	52°	0.91 m/px	2017-03-11
M1243912706R	55°	6°	50°	0.91 m/px	2017-03-11
M1249810950L	62°	2°	64°	0.60 m/px	2017-05-19
M1249810950R	62°	1°	61°	0.60 m/px	2017-05-19
M1256865334L	31°	2°	32°	0.66 m/px	2017-08-08
M1256865334R	31°	1°	30°	0.65 m/px	2017-08-08
M1262726363L	87°	2°	88°	1.68 m/px	2017-10-15
M1267424171L	36°	20°	54°	0.87 m/px	2017-12-09
M1267424171R	36°	17°	51°	0.86 m/px	2017-12-09
M1267431203L	36°	1°	35°	0.82 m/px	2017-12-09
M1267431203R	37°	4°	33°	0.82 m/px	2017-12-09
M1267438235L	37°	22°	21°	0.88 m/px	2017-12-09
M1267438235R	37°	25°	20°	0.89 m/px	2017-12-09
M1278029854L	81°	2°	83°	1.37 m/px	2018-04-10
M1278029854R	81°	1°	80°	1.37 m/px	2018-04-10
M1282732602L	33°	2°	34°	0.67 m/px	2018-06-04
M1282732602R	33°	1°	32°	0.67 m/px	2018-06-04
M1292135533R	85°	1°	84°	1.20 m/px	2018-09-21
M1297996182L	31°	2°	33°	0.87 m/px	2018-11-27
M1297996182R	32°	1°	31°	0.87 m/px	2018-11-27
M1308592372L	74°	8°	83°	1.08 m/px	2019-03-30
M1308592372R	74°	6°	80°	1.08 m/px	2019-03-30
M1323867302L	74°	37°	38°	2.39 m/px	2019-09-23
M1323867302R	74°	40°	35°	2.44 m/px	2019-09-23
M1328547146L	26°	2°	27°	0.93 m/px	2019-11-16
M1335601163L	75°	16°	91°	1.85 m/px	2020-02-06
M1335601163R	75°	13°	88°	1.84 m/px	2020-02-06
M1341492483R	41°	10°	32°	0.74 m/px	2020-04-14
M1343839869R	23°	1°	23°	0.71 m/px	2020-05-11
M1348519447R	55°	52°	12°	1.14 m/px	2020-07-04

Unnamed New 70m Crater Photometry Site