This preliminary mosaic of an Artemis III candidate landing site is composed
of images selected to optimize illuminated terrain coverage. As a first step,
the thousands of NAC images of the south pole were filtered to the region of
interest and divided into square segments along the image track at 20 m/pixel to
minimize file sizes and provide flexibility to use only illuminated portions of
each image for mosaicking. To determine optimal image ordering, we used
sub-solar longitudes to guide the image selection to ensure local areas had
consistent lighting geometries. For a first pass at offset correction, we used
the results of aligning most of the LROC NAC images poleward of 84° south as
described in Wagner et al. 2022 (LPSC LIII, Abstract no. 2573). Each image
segment was then map-projected at native image resolution (1 m/px) and images
with sub-solar longitudes within 10° bins were mosaicked together. As a second
pass at offset correction, we compared the sub-solar longitude mosaics to the
LOLA shaded relief product (5 m pixel scale). The final mosaic is a 1 m/pixel
16-bit (unsigned word) GeoTiff masked along boundaries between images with
different lighting and blended for a more “seamless” mosaic. This mosaic is
composed of 184 NACs (674 image segments) and 8 bins of sub-solar
longitude. We estimate the absolute positional accuracy to be 5 to 20 m.
When citing this product, use the following reference:
Henriksen, M. R., Burnette, S.R., Brown, H.M., Wagner, R.V., Robinson, M.S.,
Collins, W.M., Grieser, S.A., Boyd, A.K. (2023), Optimized Illuminated
Terrain Coverage of the Candidate Artemis III Landing Sites with LROC
NAC Controlled Mosaics. European Lunar Symposium,
https://sservi.directus.app/assets/2483b7e0-a336-443d-8739-3d5f4756e1fb.pdf,
pg 134-135.
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.
PDS PRODUCT NAMING CONVENTION
The PRODUCT_ID naming convention for LROC NAC ROIs is:
NAC_ROI_xxxxxxxxSSv_AyyyBzzzz[_##M].IMG where
- NAC_ROI = indicating it's a NAC ROI product
- xxxxxxx = words specifying the sitename (8 characters)
- SS = LO for low Sun angle or HI for high Sun angle
- v = incremental character for distinguishing multiple mosaics with
similar lighting of the same region. Letters are used for individual
mosaics and numbers are used for composite mosaics composed of mulitiple
controlled mosaics.
- A = projection type (E for equirectangular, P for polar stereographic)
- yyy = center latitude to the nearest 10th of a degree
- B = N for northern hemisphere, S for southern hemisphere
- zzzz = center longitude to the nearest tenth of a degree. The longitude
domain for all NAC DTMs is 360 positive east.
- [_##M] = indicates the pixel scale in meters; used only for
supplementary lower resolution products.
Example: NAC_ROI_APOLLO15LOC_E252N0018.IMG is a NAC ROI of the Apollo 15 landing site
with low-Sun. C indicates it's the third low-Sun mosaic of the Apollo 15
landing site produced. This mosaic is centered at latitude=25.2N, longitude=1.8E
and is in equirectangular projection.
This mosaic is a composite mosaic formed from the following NAC ROI controlled mosaic products:
- NAC_ROI_MALAPERTLOA
- NAC_ROI_MALAPERTLOB
- NAC_ROI_MALAPERTLOC
- NAC_ROI_MALAPERTLOD
- NAC_ROI_MALAPERTLOE
- NAC_ROI_MALAPERTLOF
- NAC_ROI_MALAPERTLOG
- NAC_ROI_MALAPERTLOH
Images used, in order of layering from front to back:
| RDR Name |
NAC_ROI_MALAPERTLO1_P860S0003 |
| Site Name |
Malapert Massif |
| Center Lat |
-86.0 |
| Center Lon |
0.3 |
| Pixel Scale |
1.00 m/px |
| Image Start Time (UTC) |
2009-11-26 06:15:34.397+00 |
| Image Stop Time (UTC) |
2017-07-17 12:08:13.5+00 |
| # Images |
184 |
| # Segments |
674 |
| Incidence |
Low Sun |
| Minimum Latitude |
-86.33 |
| Maximum Latitude |
-85.63 |
| Minimum Longitude |
-5.66 |
| Maximum Longitude |
5.15 |
| Image ID |
Center Lat |
Center Lon |
Incidence |
Pixel Scale |
| M1109356303R |
-85.20 |
0.93 |
90° |
1.22 m/px |
| M1109363449L |
-85.16 |
359.15 |
90° |
1.23 m/px |
| M1109363449R |
-85.17 |
359.86 |
90° |
1.23 m/px |
| M1109370607L |
-84.48 |
359.82 |
90° |
1.23 m/px |
| M1109370607R |
-84.49 |
0.45 |
90° |
1.23 m/px |
| M1109377749L |
-84.68 |
358.10 |
90° |
1.23 m/px |
| M1109377749R |
-84.69 |
358.76 |
90° |
1.23 m/px |
| M1125736483L |
-86.64 |
2.15 |
91° |
1.17 m/px |
| M1125736483R |
-86.61 |
1.38 |
91° |
1.17 m/px |
| M1125743614L |
-85.80 |
7.90 |
91° |
1.17 m/px |
| M1125750709L |
-86.46 |
2.57 |
91° |
1.17 m/px |
| M1125750709R |
-86.44 |
1.81 |
91° |
1.17 m/px |
| M1125764930L |
-86.44 |
1.42 |
91° |
1.18 m/px |
| M1125764930R |
-86.42 |
0.65 |
91° |
1.18 m/px |
| M1125772042L |
-86.40 |
1.05 |
91° |
1.18 m/px |
| M1125772042R |
-86.37 |
0.28 |
91° |
1.18 m/px |
| M1127243921L |
-86.21 |
7.06 |
89° |
1.18 m/px |
| M1127243921R |
-86.18 |
7.78 |
89° |
1.18 m/px |
| M1127251016L |
-85.47 |
1.78 |
89° |
1.18 m/px |
| M1127251016R |
-85.45 |
2.39 |
89° |
1.18 m/px |
| M1127336346L |
-85.72 |
350.67 |
89° |
1.16 m/px |
| M1127336346R |
-85.70 |
351.28 |
89° |
1.16 m/px |
| M1127343492L |
-87.41 |
6.32 |
89° |
1.16 m/px |
| M1127343492R |
-87.37 |
7.15 |
90° |
1.16 m/px |
| M1127350554R |
-85.03 |
346.23 |
89° |
1.16 m/px |
| M1132001326L |
-85.67 |
357.66 |
85° |
1.15 m/px |
| M1132001326R |
-85.65 |
358.24 |
85° |
1.15 m/px |
| M1132015540L |
-85.69 |
355.74 |
85° |
1.15 m/px |
| M1132015540R |
-85.67 |
356.33 |
85° |
1.15 m/px |
| M1132022624L |
-84.53 |
349.86 |
84° |
1.15 m/px |
| M1132022624R |
-84.52 |
350.34 |
84° |
1.15 m/px |
| M1132036880L |
-86.68 |
0.43 |
86° |
1.15 m/px |
| M1132036880R |
-86.66 |
1.13 |
86° |
1.15 m/px |
| M1132043966L |
-85.68 |
352.05 |
85° |
1.15 m/px |
| M1132058202L |
-86.76 |
358.72 |
86° |
1.15 m/px |
| M1132058202R |
-86.73 |
359.44 |
86° |
1.15 m/px |
| M1132065285R |
-85.60 |
349.57 |
85° |
1.15 m/px |
| M113855400R |
-85.74 |
5.68 |
87° |
1.61 m/px |
| M113862171L |
-85.12 |
6.96 |
86° |
1.61 m/px |
| M113862171R |
-85.11 |
5.98 |
87° |
1.61 m/px |
| M113875753L |
-85.92 |
3.87 |
87° |
1.61 m/px |
| M113882518L |
-84.95 |
4.74 |
86° |
1.60 m/px |
| M113882518R |
-84.95 |
3.80 |
86° |
1.60 m/px |
| M113896102L |
-85.81 |
2.00 |
87° |
1.60 m/px |
| M113896102R |
-85.80 |
0.87 |
87° |
1.60 m/px |
| M113902867L |
-84.77 |
2.64 |
86° |
1.60 m/px |
| M113902867R |
-84.76 |
1.74 |
86° |
1.60 m/px |
| M113916459L |
-85.92 |
359.47 |
87° |
1.60 m/px |
| M113916459R |
-85.91 |
358.32 |
87° |
1.60 m/px |
| M1157964657L |
-85.61 |
355.37 |
89° |
1.25 m/px |
| M1157964657R |
-85.58 |
356.11 |
89° |
1.25 m/px |
| M1157978903L |
-86.08 |
357.43 |
89° |
1.26 m/px |
| M1157978903R |
-86.04 |
358.23 |
89° |
1.26 m/px |
| M1157993133L |
-85.77 |
353.17 |
89° |
1.26 m/px |
| M1157993133R |
-85.74 |
353.94 |
89° |
1.26 m/px |
| M1158007354L |
-84.99 |
346.41 |
89° |
1.26 m/px |
| M1158007354R |
-84.96 |
347.09 |
89° |
1.26 m/px |
| M1158021589R |
-84.88 |
344.95 |
89° |
1.26 m/px |
| M1162620390L |
-86.02 |
6.26 |
86° |
1.25 m/px |
| M1162620390R |
-85.98 |
7.06 |
86° |
1.25 m/px |
| M1162627483L |
-85.02 |
358.61 |
85° |
1.25 m/px |
| M1162627483R |
-84.99 |
359.29 |
85° |
1.25 m/px |
| M1162634615L |
-85.85 |
2.97 |
86° |
1.25 m/px |
| M1162634615R |
-85.82 |
3.75 |
86° |
1.25 m/px |
| M1162641741L |
-86.38 |
6.95 |
86° |
1.25 m/px |
| M1162641741R |
-86.34 |
7.79 |
86° |
1.25 m/px |
| M1162648817L |
-84.55 |
353.50 |
84° |
1.25 m/px |
| M1162648817R |
-84.52 |
354.13 |
84° |
1.25 m/px |
| M1162655976L |
-86.64 |
8.49 |
87° |
1.25 m/px |
| M1162655976R |
-86.60 |
9.34 |
87° |
1.25 m/px |
| M1162663050L |
-84.69 |
352.29 |
85° |
1.25 m/px |
| M1162663050R |
-84.66 |
352.93 |
85° |
1.25 m/px |
| M1162670190L |
-85.95 |
359.34 |
86° |
1.25 m/px |
| M1162670190R |
-85.91 |
0.12 |
86° |
1.25 m/px |
| M1162677324L |
-86.76 |
7.94 |
87° |
1.26 m/px |
| M1162677324R |
-86.72 |
8.79 |
87° |
1.26 m/px |
| M1162705755L |
-85.48 |
351.52 |
85° |
1.26 m/px |
| M1162719981L |
-85.30 |
348.65 |
85° |
1.26 m/px |
| M1162719981R |
-85.27 |
349.37 |
85° |
1.26 m/px |
| M1162734221L |
-85.77 |
350.58 |
86° |
1.27 m/px |
| M1162734221R |
-85.73 |
351.34 |
86° |
1.27 m/px |
| M117492829L |
-87.04 |
5.79 |
90° |
1.62 m/px |
| M117506448L |
-86.01 |
2.05 |
90° |
0.56 m/px |
| M117506448R |
-86.00 |
3.28 |
90° |
0.56 m/px |
| M117513187L |
-87.07 |
2.51 |
90° |
1.62 m/px |
| M117513187R |
-87.06 |
4.19 |
90° |
1.62 m/px |
| M117520021L |
-85.99 |
359.98 |
90° |
0.56 m/px |
| M117520021R |
-85.98 |
1.20 |
90° |
0.56 m/px |
| M117533593L |
-86.00 |
358.14 |
90° |
0.56 m/px |
| M117533593R |
-85.99 |
359.36 |
90° |
0.56 m/px |
| M117540333L |
-87.03 |
358.81 |
90° |
1.62 m/px |
| M117540333R |
-87.02 |
0.46 |
90° |
1.62 m/px |
| M117547164L |
-86.01 |
356.42 |
90° |
0.56 m/px |
| M117547164R |
-86.00 |
357.66 |
90° |
0.56 m/px |
| M1188609308L |
-84.90 |
351.03 |
89° |
1.08 m/px |
| M1188609308R |
-84.88 |
351.38 |
89° |
1.08 m/px |
| M1188616336L |
-84.90 |
350.21 |
89° |
1.08 m/px |
| M1188616336R |
-84.88 |
350.56 |
89° |
1.08 m/px |
| M1193290011L |
-84.98 |
355.39 |
85° |
1.07 m/px |
| M1193290011R |
-84.96 |
355.73 |
85° |
1.07 m/px |
| M1193297039L |
-85.02 |
354.79 |
85° |
1.07 m/px |
| M1193297039R |
-85.00 |
355.14 |
85° |
1.07 m/px |
| M1193824283R |
-86.76 |
343.44 |
90° |
1.09 m/px |
| M1193922689L |
-86.82 |
337.80 |
90° |
1.09 m/px |
| M1193922689R |
-86.79 |
337.56 |
90° |
1.09 m/px |
| M1195848195R |
-85.93 |
347.68 |
86° |
1.14 m/px |
| M1195883342L |
-85.89 |
344.67 |
86° |
1.14 m/px |
| M1195883342R |
-85.93 |
344.31 |
86° |
1.14 m/px |
| M1196220975L |
-86.38 |
356.89 |
90° |
1.07 m/px |
| M1196220975R |
-86.41 |
357.18 |
90° |
1.07 m/px |
| M1196242065L |
-86.08 |
1.33 |
91° |
1.08 m/px |
| M1196242065R |
-86.11 |
1.67 |
91° |
1.08 m/px |
| M1196249100L |
-86.03 |
1.45 |
91° |
1.08 m/px |
| M1196249100R |
-86.06 |
1.79 |
91° |
1.08 m/px |
| M1196270201L |
-86.05 |
358.41 |
91° |
1.09 m/px |
| M1196270201R |
-86.08 |
358.76 |
91° |
1.09 m/px |
| M1196277234L |
-86.09 |
356.85 |
91° |
1.09 m/px |
| M1196277234R |
-86.12 |
357.21 |
91° |
1.09 m/px |
| M1196354589L |
-86.72 |
339.22 |
90° |
1.09 m/px |
| M1196354589R |
-86.75 |
339.59 |
90° |
1.09 m/px |
| M1198661429L |
-86.28 |
349.81 |
89° |
1.09 m/px |
| M1198661429R |
-86.31 |
350.17 |
89° |
1.09 m/px |
| M1215026805L |
-85.20 |
16.90 |
91° |
1.08 m/px |
| M1215026805R |
-85.18 |
16.57 |
91° |
1.08 m/px |
| M1215033840L |
-85.16 |
16.59 |
91° |
1.08 m/px |
| M1215033840R |
-85.13 |
16.27 |
91° |
1.08 m/px |
| M1215040874L |
-85.13 |
16.07 |
91° |
1.08 m/px |
| M1215040874R |
-85.11 |
15.75 |
91° |
1.08 m/px |
| M1219345040L |
-86.09 |
359.95 |
91° |
1.15 m/px |
| M1219345040R |
-86.05 |
0.30 |
91° |
1.15 m/px |
| M1219359113L |
-86.17 |
1.37 |
91° |
1.16 m/px |
| M1219359113R |
-86.13 |
1.69 |
91° |
1.16 m/px |
| M1219373186L |
-86.24 |
2.99 |
91° |
1.16 m/px |
| M1219373186R |
-86.20 |
3.27 |
91° |
1.16 m/px |
| M1219380194L |
-85.45 |
345.02 |
90° |
1.16 m/px |
| M1219380194R |
-85.42 |
345.42 |
90° |
1.16 m/px |
| M1219408334L |
-85.47 |
342.30 |
90° |
1.16 m/px |
| M1219408334R |
-85.43 |
342.68 |
90° |
1.16 m/px |
| M1219429447L |
-85.72 |
344.44 |
91° |
1.16 m/px |
| M1219429447R |
-85.68 |
344.79 |
91° |
1.16 m/px |
| M1219464638L |
-86.17 |
351.95 |
91° |
1.16 m/px |
| M1219471655L |
-85.74 |
338.82 |
91° |
1.15 m/px |
| M1219471655R |
-85.70 |
339.16 |
91° |
1.15 m/px |
| M1219492773L |
-86.08 |
346.17 |
91° |
1.14 m/px |
| M1219492773R |
-86.04 |
346.42 |
91° |
1.14 m/px |
| M1224148814L |
-86.21 |
357.42 |
88° |
1.18 m/px |
| M1224148814R |
-86.15 |
357.66 |
88° |
1.18 m/px |
| M1224162883L |
-86.21 |
355.42 |
88° |
1.18 m/px |
| M1224162883R |
-86.15 |
355.66 |
88° |
1.18 m/px |
| M1224176954L |
-86.24 |
355.28 |
88° |
1.18 m/px |
| M1224176954R |
-86.19 |
355.48 |
88° |
1.17 m/px |
| M1226406420L |
-85.81 |
356.12 |
86° |
1.19 m/px |
| M1226406420R |
-85.86 |
355.71 |
86° |
1.18 m/px |
| M1226420474L |
-85.31 |
346.75 |
86° |
1.19 m/px |
| M1226420474R |
-85.35 |
346.31 |
86° |
1.19 m/px |
| M1226434571L |
-86.12 |
2.20 |
87° |
1.20 m/px |
| M1226434571R |
-86.17 |
1.88 |
87° |
1.19 m/px |
| M1226441580L |
-85.39 |
345.82 |
86° |
1.19 m/px |
| M1226441580R |
-85.44 |
345.38 |
86° |
1.19 m/px |
| M1226448611L |
-85.25 |
342.91 |
85° |
1.19 m/px |
| M1226448611R |
-85.29 |
342.48 |
86° |
1.19 m/px |
| M1226694871L |
-86.25 |
343.70 |
88° |
1.19 m/px |
| M1226694871R |
-86.30 |
343.68 |
88° |
1.19 m/px |
| M1252372295L |
-85.18 |
339.38 |
88° |
1.40 m/px |
| M1254918433L |
-85.90 |
339.93 |
89° |
1.40 m/px |
| M1254918433R |
-86.00 |
339.80 |
89° |
1.40 m/px |
| M1254932532L |
-85.95 |
350.90 |
90° |
1.40 m/px |
| M1254932532R |
-86.04 |
351.07 |
90° |
1.40 m/px |
| M132836066R |
-86.35 |
357.91 |
90° |
1.05 m/px |
| M132849636L |
-86.38 |
354.56 |
90° |
1.06 m/px |
| M132849636R |
-86.38 |
355.84 |
90° |
1.06 m/px |
| M137511054L |
-85.15 |
3.83 |
85° |
1.08 m/px |
| M137511054R |
-85.15 |
4.80 |
85° |
1.08 m/px |
| M148114730L |
-86.06 |
4.88 |
90° |
1.07 m/px |
| M148128258L |
-87.10 |
1.43 |
90° |
1.33 m/px |
| M148128258R |
-87.10 |
3.06 |
90° |
1.33 m/px |
| M163550790L |
-86.12 |
356.34 |
90° |
1.31 m/px |
| M163550790R |
-86.11 |
357.49 |
90° |
1.31 m/px |
| M194223545L |
-85.72 |
1.77 |
91° |
1.19 m/px |
| M194223545R |
-85.70 |
2.47 |
91° |
1.19 m/px |
| M194230698L |
-85.96 |
1.56 |
91° |
1.19 m/px |
| M194230698R |
-85.95 |
2.30 |
91° |
1.18 m/px |
| M194237835L |
-85.77 |
359.67 |
91° |
1.18 m/px |
| M194237835R |
-85.75 |
0.36 |
91° |
1.18 m/px |
Link to browse PNG
http://lroc.sese.asu.edu/data/LRO-L-LROC-5-RDR-V1.0/LROLRC_2001/EXTRAS/BROWSE/NAC_ROI/MALAPERTLO1/NAC_ROI_MALAPERTLO1_P860S0003.BROWSE.PNG
