EP-95 ON THE MOON WITH APOLLO 16

 

[81-84] TABLE 2.-LRV Exploration Traverse

 

(The entries in this table are brief. They are explained in the text and in the glossary. The table should be considered a general guide only; not every item is mandatory at each stop. The times are especially likely to change during the mission. The reader may wish to mark the actual times for himself on the table.)

Station/activity

Segment time

(hr: min)

Elapsed time at start

(hr: min)

Geological features

Observations and activities

EVA 1

LM

1:37

-

Cayley Plains

Egress, observe LM, prepare for departure from Moon, deploy LRV

ALSEP

2:24

1:37

Cayley Plains

ALSEP deployment. See Table 3 for details

Travel

0:14

4:01

Across Cayley Plains and Rays.

Observe Station 2 area and distribution of ray material

1-Flag Crater

0:30

4:15

Flag Crater, about 300 meters in diameter in Cayley Plains; adjacent ray from South Ray Crater

Exploration of the crater and excavated Cayley material, observations of adjacent ray:

PAN

Crater sampling

LPM Site Measurement

Rake/Soil Sample

Travel

0:06

4:45

Across Cayley Plains and Rays.

Assess Station 2 region for best sampling area

2-Spook Crater Vicinity

0:31

4:51

Spook Crater (about 300 m diameter) and small blocky crater to the north.

Inspect and describe the geology at this station. Divide time between Spook and blocky crater:

PAN

Documented sampling, including:

Spook Crater rim

Blocks associated with small crater

500 mm photography of outlying areas

Grand Prix

[82] TABLE 2.-LRV Exploration Traverse-Continued

Station/activity

Segment time

(hr: min)

Elapsed time at start

(hr: min)

Geological features

Observations and activities

EVA 1

Travel

0:08

5:22

Across Cayley Plains

Observe and describe ray patterns; area of EVA II route to Stone Mountain

3

0:50

5:30

Cayley Plains near LM and ALSEP

Soil/Rake Sample

Double Core Tube

Documented Sampling

Soil Mechanics-trench and penetrometer measurements 500 mm Photography (if not done at Sta. 2)

Soil Samples from Trench, Retrieve 2.6 m core Arm

MP

LM

0:40

6:20

Cayley Plains

Closeout-store samples, ingress

LM

0:50

00

Cayley Plains

Egress and EVA preparation

Travel

36

50

Across Cayley Plains and Rays from South Ray to the lower slopes of Stone Mtn.

Observe and describe distribution of Rays, abundance of blocks, and secondary craters. Note the slope of Stone Mountain. Describe changes of the regolith.

4-Stone Mountain.

1:00

1:26

Small craters at base of terrace in Descartes formation. The highest point reached in the Descartes formation on Stone Mountain.

Observe, describe, and sample Descartes formation:

PAN-(take one at beginning and a second at the most distant point from the LRV during sampling)

Documented sampling, including

Rake/Soil Sample

Double core (consider triple)

LPM reading

500 mm photography-include upslope targets

Penetrometer

Travel

03

2:26

Descartes formation

Observe and describe terraces and any changes in bedrock and regolith

5-Stone Mountain.

0:45

2:29

Intermediate area in crated and terraced region of Descartes formation.

Station to be selected at some intermediate point on the way down Stone Mountain

PAN

Documented sampling

500 mm photography of South Ray Crater

Travel

07

3:14

Descartes formation

Observe and describe craters, blocks

6-Stone Mountain.

0:30

3:21

In Descartes formation at base of Stone Mountain

Note and describe characteristics of Descartes formation and local gelogy and compare to adjacent Cayley:

Describe upslope terraces:

PAN

Documented sampling, including:

Surface Sampler (one on undisturbed soil, one on top of rock; return rock)

Elongated SESC (single core)

Travel

07

3:51

Descartes formation

Observe terraces and any changes of bedrock and regolith

7-Stone Mountain-Stubby Crater Area.

0:20

3:58

In Descartes formation at base of Stone Mountain near Stubby.

Observe and describe relations between Cayley and Descartes formations in Stubby area:

PAN

Documented sampling of Stubby rim

500 mm photography, including south wall of Stubby

Travel

07

4:18

Across Cayley formation to Rays from South Ray Crater.

Observe and describe changes in regolith and note characteristics of Rays

 

[83] TABLE 2.-LRV Exploration Traverse-Continued

 

Station/activity

Segment time

(hr: min)

Elapsed time at start

(hr: min)

Geological features

Observations and activities

EVA 1

8-Rays From South Ray Crater

55

4:25

In Rays from South Ray Crater overlying Cayley.

Observe and describe blocky Ray area:

PAN

Double eve (single if triple taken on Stone Mountain)

Rake/Soil Sample

Documented sampling, including

Possible use of padded bags

Possible boulder/permanent shadow SESC

Sample large boulder

Travel

14

5:20

Cayley Plains

Describe characteristics of Cayley and Rays

9

0:15

5:34

Cayley Plains adjacent to South Ray deposits.

Examine, describe and sample Cayley/Ray area:

PAN

Documented Sampling

Surface Soil Sample

Shallow Trench Soil Sample

Travel

07

5:49

Across Cayley Plains

-

10

20

5:56

Cayley Plains

Radial sampling of small crater

Travel

05

6:14

Across Cayley Plains

-

LM

0:40

6:19

Cayley Plains

Closeout store equipment and samples, ingress

.

EVA III

.

LM

0:45

00

Cayley Plains

Egress and prepare for traverse

Travel

39

45

Across Cayley toward North Ray.

Observe Cayley, Describe features near Palmetto Crater

Observe Rays and describe the material seen on the approach to North Ray Crater

11-North Ray Crater.

0:55

1:24

South rim of North Ray Crater.

Examine and describe ejecta and the crater interior

Stereo Pan

Documented sampling

500 mm photography of crater rim and interior

Polarametric photography and sampling

Travel

03

2:19

Around North Ray rim

Note and describe variety and distribution of block

12-North Ray Crater.

 

1:00

2:22

Area of very large blocks on east rim on North Ray Crater.

Block field with large blocks of different albedo:

PAN

500 mm photography of interior of North Ray

Documented sampling

Boulder sampling

Rake/soil

Travel

08

3:22

From North Ray to base of Smoky Mountain (Descartes formation).

Observe and describe transition to Smoky Mountain

13-Travel

0.10

3:30

North Ray ejecta blanket

Rock/Soil Sample

07

3:40

-

Observe and describe number, variety, and geographic distribution of blocks

14-Smoky Mountain.

0:40

3:47

Crater cluster at base of Smoky Mountain.

In Descartes formation:

PAN

Documented sampling of Smoky Mountain

Double eve

Rake/soil

500 mm photography of Smoky Mountain

Travel

09

4:27

South across Cayley Plains towards Palmetto Crater.

Observe and describe Smoky Mountain and changes of Cayley characteristics

15

0:10

4:36

Dot Prime Crater

Soil sample

Rock sample

LPM reading

 

[84] TABLE 2.-LRV Exploration Traverse- Continued

Station/activity

Segment time

(hr: min)

Elapsed time at start

(hr: min)

Geological features

Observations and activities

EVA I

Travel

09

4:46

Toward Palmetto Crater

 

Observe and describe changes in soil and rocks on approach to Palmetto Crater

16-Palmetto Crater

15

4:55

Rim of subdued crater 1 km in Cayley Plains.

 

PAN

Soil and Rock Sample

LPM

Travel

06

5:10

Across Cayley plains south of Palmetto toward LM.

Observe lateral changes in Cayley characteristics

17

33

5:16

Cayley plains

Documented sampling:

Soil/rake sample

LPM

Travel

16

5:49

Across Cayley plains toward LM.

Observe characteristics of Cayley plains

LM

55

6:05

Cayley plains

Grand Prix #2

Closeout: store samples and equipment: Ingress

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