Difference: Lcross_palomar (1 vs. 9)

Revision 92009-10-10 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Preliminary Results

Line: 6 to 6
 Palomar_ao_bouchez_10s_after_impact.png
... and 15s after impact. No obvious detection of an impact ejecta plume.
Added:
>
>		 Palomar AO movie of the LCROSS impact (19 Mb MPEG)
 

Contact Information

  • Palomar dataroom phone: 760-642-2105
  • WebEx telecon starts at 18:30 10/8/09 PDT.
Line: 53 to 54
 
META FILEATTACHMENT attachment="Gemini_finder_chart.png" attr="" comment="" date="1255039262" name="Gemini_finder_chart.png" path="Gemini_finder_chart.png" size="1052042" stream="Gemini_finder_chart.png" user="Main.AntoninBouchez" version="2"
META FILEATTACHMENT attachment="Palomar_ao_bouchez_10s_after_impact.png" attr="" comment="" date="1255099968" name="Palomar_ao_bouchez_10s_after_impact.png" path="Palomar_ao_bouchez_10s_after_impact.png" size="326497" stream="Palomar_ao_bouchez_10s_after_impact.png" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="Palomar_ao_bouchez_15s_after_impact.png" attr="" comment="" date="1255099981" name="Palomar_ao_bouchez_15s_after_impact.png" path="Palomar_ao_bouchez_15s_after_impact.png" size="325882" stream="Palomar_ao_bouchez_15s_after_impact.png" user="Main.AntoninBouchez" version="1"
Added:
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META FILEATTACHMENT attachment="lcross_palomar.mpg" attr="" comment="" date="1255159274" name="lcross_palomar.mpg" path="lcross_palomar.mpg" size="19668884" stream="lcross_palomar.mpg" user="Main.AntoninBouchez" version="1"

Revision 82009-10-09 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Preliminary Results

Palomar AO image of Cabeus crater 10s after Centaur impact: Palomar_ao_bouchez_10s_after_impact.png
Changed:
<
<		... and 15s after impact.
>
>		... and 15s after impact. No obvious detection of an impact ejecta plume.
 

Contact Information

  • Palomar dataroom phone: 760-642-2105

Revision 72009-10-09 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Added:
>
>

Preliminary Results

Palomar AO image of Cabeus crater 10s after Centaur impact: Palomar_ao_bouchez_10s_after_impact.png
... and 15s after impact.
 

Contact Information

  • Palomar dataroom phone: 760-642-2105
  • WebEx telecon starts at 18:30 10/8/09 PDT.
Line: 45 to 51
 
META FILEATTACHMENT attachment="LCROSS_Observation_Campaign_Timeline_6Oct.xls" attr="" comment="" date="1254894118" name="LCROSS_Observation_Campaign_Timeline_6Oct.xls" path="LCROSS_Observation_Campaign_Timeline_6Oct.xls" size="20992" stream="LCROSS_Observation_Campaign_Timeline_6Oct.xls" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="pharo_field.png" attr="" comment="" date="1254947415" name="pharo_field.png" path="pharo_field.png" size="805369" stream="pharo_field.png" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="Gemini_finder_chart.png" attr="" comment="" date="1255039262" name="Gemini_finder_chart.png" path="Gemini_finder_chart.png" size="1052042" stream="Gemini_finder_chart.png" user="Main.AntoninBouchez" version="2"
Added:
>
>
META FILEATTACHMENT attachment="Palomar_ao_bouchez_10s_after_impact.png" attr="" comment="" date="1255099968" name="Palomar_ao_bouchez_10s_after_impact.png" path="Palomar_ao_bouchez_10s_after_impact.png" size="326497" stream="Palomar_ao_bouchez_10s_after_impact.png" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="Palomar_ao_bouchez_15s_after_impact.png" attr="" comment="" date="1255099981" name="Palomar_ao_bouchez_15s_after_impact.png" path="Palomar_ao_bouchez_15s_after_impact.png" size="325882" stream="Palomar_ao_bouchez_15s_after_impact.png" user="Main.AntoninBouchez" version="1"

Revision 62009-10-08 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Contact Information

Line: 25 to 25
 

Finder Charts

PHARO 40" field overlaid on NASA GSFC visualization as seen from Palomar.
Changed:
<
<		 pharo_field.png
>
>		 pharo_field.png

Gemini finder chart Gemini_finder_chart.png
 

Ephemeris, Timelines, Etc.

  • Range to impact site is 3.66936 x 10^5 km.
Line: 42 to 44
 
META FILEATTACHMENT attachment="LCROSS_Observatory_Status_Sheet_6Oct.doc" attr="" comment="" date="1254894108" name="LCROSS_Observatory_Status_Sheet_6Oct.doc" path="LCROSS_Observatory_Status_Sheet_6Oct.doc" size="44544" stream="LCROSS_Observatory_Status_Sheet_6Oct.doc" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="LCROSS_Observation_Campaign_Timeline_6Oct.xls" attr="" comment="" date="1254894118" name="LCROSS_Observation_Campaign_Timeline_6Oct.xls" path="LCROSS_Observation_Campaign_Timeline_6Oct.xls" size="20992" stream="LCROSS_Observation_Campaign_Timeline_6Oct.xls" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="pharo_field.png" attr="" comment="" date="1254947415" name="pharo_field.png" path="pharo_field.png" size="805369" stream="pharo_field.png" user="Main.AntoninBouchez" version="1"
Added:
>
>
META FILEATTACHMENT attachment="Gemini_finder_chart.png" attr="" comment="" date="1255039262" name="Gemini_finder_chart.png" path="Gemini_finder_chart.png" size="1052042" stream="Gemini_finder_chart.png" user="Main.AntoninBouchez" version="2"

Revision 52009-10-08 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Contact Information

Line: 8 to 8
 

Schedule (Times UT, updated 10/6/09)

  • ~02:00 Spacecraft separation
Changed:
<
<
  • 08:30 Acquire moon; determine best feature to use for AO lock
  • 10:30 Begin impact imaging sequence
>
>
  • 08:30 Acquire Cabeus crater; determine best feature to use for AO lock
  • 10:30 Acquire 1st set of sky background frames
  • 11:00 Begin impact imaging sequence
 
  • 11:31:19 Centaur impact
  • 11:35:45 Shepherding spacecraft impact
Changed:
<
<
  • 12:00 End impact imaging sequence
>
>
  • 11:50 End impact imaging sequence, acquire 2nd set of sky background frames
 
  • 14:00 NASA ARC press conference (submit graphics by 12:30)
Added:
>
>

Observing Plan

Our goal is to image the evolution of the LCROSS debris plume at the highest possible spatial resolution. We plan to use the Palomar Adaptive Optics system to lock on a bright lunar feature, probably a crater wall or mountain peak, near the predicted impact location. Full AO correction should provide spatial resolution of ~0.1 arcseconds (180 meters at Cabeus crater) across the 40 arcsecond (71 km) field of view of the PHARO near-infrared camera.

The debris curtain is expected to expand at ~150 m/s, reaching maximum brightness after ~60s at a diameter of ~20 km. We will acquire 1.4s integrations every 2.8s, thus providing a ~40 frame movie of the expanding debris plume during its highest density phase. We will observe at K band (2.1 microns), to maximize AO correction and sensitivity to large particles.

We have allocated 2 hrs (8:30-10:30 UT) to locate Cabeus crater and test surrounding features for that providing the best AO correction. We will then offset to blank sky to acquire bias/background frames, and begin our impact imaging sequence at 11:00 UT. We intend to continue the image sequence through impact and for at least 15 minutes after Centaur impact.

 

Finder Charts

PHARO 40" field overlaid on NASA GSFC visualization as seen from Palomar. pharo_field.png

Ephemeris, Timelines, Etc.

  • Range to impact site is 3.66936 x 10^5 km.
Deleted:
<
<
    • 40" field of view = 71.2 km.
    • .10" resolution = 178 m.
 

Revision 42009-10-07 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Contact Information

Line: 16 to 16
 
  • 14:00 NASA ARC press conference (submit graphics by 12:30)

Finder Charts

Changed:
<
<		PHARO 40" field: pharo_field.png
>
>		PHARO 40" field overlaid on NASA GSFC visualization as seen from Palomar. pharo_field.png
 

Ephemeris, Timelines, Etc.

  • Range to impact site is 3.66936 x 10^5 km.

Revision 32009-10-07 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Contact Information

Line: 16 to 16
 
  • 14:00 NASA ARC press conference (submit graphics by 12:30)

Finder Charts

Added:
>
>		PHARO 40" field: pharo_field.png
 

Ephemeris, Timelines, Etc.

Added:
>
>
  • Range to impact site is 3.66936 x 10^5 km.
    • 40" field of view = 71.2 km.
    • .10" resolution = 178 m.
 

Line: 28 to 35
 
META FILEATTACHMENT attachment="cabeus_ephem.txt" attr="" comment="" date="1254873634" name="cabeus_ephem.txt" path="cabeus_ephem.txt" size="29759" stream="cabeus_ephem.txt" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="LCROSS_Observatory_Status_Sheet_6Oct.doc" attr="" comment="" date="1254894108" name="LCROSS_Observatory_Status_Sheet_6Oct.doc" path="LCROSS_Observatory_Status_Sheet_6Oct.doc" size="44544" stream="LCROSS_Observatory_Status_Sheet_6Oct.doc" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="LCROSS_Observation_Campaign_Timeline_6Oct.xls" attr="" comment="" date="1254894118" name="LCROSS_Observation_Campaign_Timeline_6Oct.xls" path="LCROSS_Observation_Campaign_Timeline_6Oct.xls" size="20992" stream="LCROSS_Observation_Campaign_Timeline_6Oct.xls" user="Main.AntoninBouchez" version="1"
Added:
>
>
META FILEATTACHMENT attachment="pharo_field.png" attr="" comment="" date="1254947415" name="pharo_field.png" path="pharo_field.png" size="805369" stream="pharo_field.png" user="Main.AntoninBouchez" version="1"

Revision 22009-10-07 - AntoninBouchez

Line: 1 to 1
 
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Contact Information

  • Palomar dataroom phone: 760-642-2105
Changed:
<
<
  • WebEx telecon starts at 18:30 10/8/09 PDT.
>
>

Schedule (Times UT, updated 10/6/09)

  • ~02:00 Spacecraft separation
  • 08:30 Acquire moon; determine best feature to use for AO lock
  • 10:30 Begin impact imaging sequence
  • 11:31:19 Centaur impact
  • 11:35:45 Shepherding spacecraft impact
  • 12:00 End impact imaging sequence
  • 14:00 NASA ARC press conference (submit graphics by 12:30)
 

Finder Charts

Ephemeris, Timelines, Etc.

Deleted:
<
<
  • New Impact Time: 11:31:19 UTC (as of 5pm 10/6/09)
 
Changed:
<
<

Links

>
>
 
Added:
>
>

Links

 
META FILEATTACHMENT attachment="cabeus_ephem.txt" attr="" comment="" date="1254873634" name="cabeus_ephem.txt" path="cabeus_ephem.txt" size="29759" stream="cabeus_ephem.txt" user="Main.AntoninBouchez" version="1"
Added:
>
>
META FILEATTACHMENT attachment="LCROSS_Observatory_Status_Sheet_6Oct.doc" attr="" comment="" date="1254894108" name="LCROSS_Observatory_Status_Sheet_6Oct.doc" path="LCROSS_Observatory_Status_Sheet_6Oct.doc" size="44544" stream="LCROSS_Observatory_Status_Sheet_6Oct.doc" user="Main.AntoninBouchez" version="1"
META FILEATTACHMENT attachment="LCROSS_Observation_Campaign_Timeline_6Oct.xls" attr="" comment="" date="1254894118" name="LCROSS_Observation_Campaign_Timeline_6Oct.xls" path="LCROSS_Observation_Campaign_Timeline_6Oct.xls" size="20992" stream="LCROSS_Observation_Campaign_Timeline_6Oct.xls" user="Main.AntoninBouchez" version="1"

Revision 12009-10-07 - AntoninBouchez

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="Eng_091008"

Oct. 9, 2009 UT LCROSS Impact Imaging

Contact Information

  • Palomar dataroom phone: 760-642-2105
  • WebEx telecon starts at 18:30 10/8/09 PDT.

Finder Charts

Ephemeris, Timelines, Etc.

  • New Impact Time: 11:31:19 UTC (as of 5pm 10/6/09)
  • cabeus_ephem.txt: Ephemeris for moon lat: 310.95, lon: -84.70, alt:0 km.

Links

META FILEATTACHMENT attachment="cabeus_ephem.txt" attr="" comment="" date="1254873634" name="cabeus_ephem.txt" path="cabeus_ephem.txt" size="29759" stream="cabeus_ephem.txt" user="Main.AntoninBouchez" version="1"
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