RMS values derived from RxH3 maps
RMS values derived from RxH3 maps
The following table lists all results from RxH3 maps, made since
December 2001. Only results from maps in not adverse weather conditions
are used. Maps in bad weather show stripes and an increased rms.
Also not shown are maps where some panels were moved out for tests.
Maps made at 160 GHz where the accuracy of the
measurements is better (and the rms generally lower by 1.3 micron) are indicated in
red.
Some more information about the maps (tau_cso etc) is given
here.
Some numbers for the surface accuracy before 2001 derived from
RxH2.
The expected error budget is at this moment:
Panels 18 micron (random 12 micron; systematic 13 micron)
Backing structure 13 micron
Measuring 8 micron
Setting 1 micron
Others 7 micron
Total 24.6 micron
(from "Surface Upgrade Design Study, phase 2", October 1996)
The numbers are to be confirmed from a detailed analysis of the maps.
Explanation of the table (see also
here):
Freq frequency (80 or 160 GHz)
n number of frequencies observed
A rms of dish
B rms with 10 dB edge taper (that of most receivers in the telescope)
C ruze rms 650 GHz
D ruze rms 900 GHz
E adjuster rms (equivalent to RxH2 rms values). Click on number to see moves
as a function of position on the dish.
F The same, omitting non-functional adjusters (derived from file with moves in steps which
underestimates this rms by about 1 micron)
Maps with *** in the last column were made between 6h00 and 20h00 HST
when the rms is expected to be larger.
Results derived from RxH3 maps
| Map | Freq | n | A | B | C | D | E | F | remarks |
| 20071013-020024 | 160 | 16 | 22.3 | 21.8 | 19.9 | 19.3 |
15.9 | 7.8 | |
| 20071010 14h56 adjustment based on 20070924-015944 |
| 20071004-000645 | 160 | 5 | 25.4 | 25.0 | 22.4 | 21.7 |
21.5 | 16.5 | |
| 20070924-015944 | 160 | 16 | 25.7 | 24.8 | 22.3 | 21.7 |
22.3 | 18.0 | |
| 20070830-175217 | 80 | 16 | 31.1 | 30.0 | 27.9 | 27.6 |
35.1 | | *** |
| 20050919-004954 | 80 | 16 | 28.1 | 26.8 | 23.4 | 22.7 |
28.2 | | |
| 20050912-025747 | 160 | 16 | 30.0 | 28.4 | 24.1 | 23.3 |
26.0 | 20.0 | weather? |
| 20050704-233528 | 160 | 16 | 24.2 | 23.3 | 20.4 | 19.8 |
18.8 | 11.2 | |
| 20050223 14h01 adjustment based on 20050213-214437 |
| 20050213-214437 | 160 | 16 | 25.6 | 25.1 | 22.7 | 22.1 |
19.7 | 13.8 | |
| 20050213 8h fans in cabin centerbeams turned on |
| 20050126-014223 | 160 | 16 | 25.0 | 24.4 | 22.0 | 21.3 |
20.3 | 13.8 | |
| 20050121 13h44 adjustment based on 20050119-230706 |
| 20050119-230706 | 160 | 16 | 24.4 | 23.9 | 21.6 | 21.0 |
19.4 | 13.3 | |
| 20041201 16h31 adjustment based on 20041111-234518 and 20041118-010140 |
| 20041118-010140 | 160 | 16 | 26.1 | 25.4 | 22.6 | 21.9 |
20.1 | 13.1 | |
| 20041111-234518 | 160 | 16 | 25.5 | 24.8 | 21.6 | 21.0 |
20.2 | 12.4 | |
| 20040909-024418 | 160 | 16 | 23.3 | 22.8 | 20.2 | 19.6 |
17.9 | 9.4 | |
| 20040808-234534 | 160 | 16 | 23.4 | 22.9 | 20.1 | 19.4 |
17.4 | 9.3 | |
| 20040712-001239 | 160 | 16 | 24.3 | 23.7 | 20.9 | 20.2 |
19.2 | 12.2 | |
| 20040616-233344 | 160 | 16 | 25.2 | 24.5 | 21.2 | 20.5 |
20.0 | 12.4 | |
| 20040524 16h54 adjustment based on 20040428-235444 |
| 20040428-235444 | 160 | 16 | 28.7 | 27.6 | 24.1 | 23.3 |
23.7 | 17.4 | |
| 20040424-233514 | 160 | 16 | 27.4 | 26.5 | 23.2 | 22.4 |
22.4 | 15.9 | |
| 20040320-003429 | 160 | 16 | 27.0 | 26.3 | 23.5 | 22.8 |
21.1 | 13.7 | |
| 20031222-023408 | 160 | 16 | 26.1 | 25.5 | 23.1 | 22.5 |
20.8 | 14.4 | |
| 20031222-014018 | 80 | 16 | 31.9 | 30.6 | 27.2 | 26.5 | 29.2 | | |
| 20031006-015503 | 160 | 16 | 25.6 | 24.9 | 21.8 | 21.1 |
20.7 | 12.0 | |
| 20030907-032809 | 160 | 16 | 25.2 | 24.8 | 22.5 | 21.9 |
18.9 | 10.3 | |
| 20030819-032635 | 160 | 16 | 26.7 | 26.1 | 23.4 | 22.6 |
21.5 | 13.5 | Coma problem after SMU repair |
| 20030731-004329 | 80 | 16 | 29.4 | 28.3 | 25.3 | 24.6 | 27.7 |
| 20030730 14h24 adjustment based on 20030630-235645 |
| 20030630-235645 | 160 | 16 | 25.2 | 24.6 | 21.8 | 21.1 |
20.5 | 12.5 | |
| 20030519-032416 | 160 | 16 | 25.0 | 24.4 | 21.8 | 21.2 |
19.7 | 11.6 | |
| 20030514 11h10 adjustment based on 20030409-032446 |
| 20030409-032446 | 160 | 16 | 24.5 | 24.0 | 21.2 | 20.6 |
18.7 | 8.5 | |
| 20030409-022221 | 80 | 16 | 28.7 | 27.6 | 24.3 | 23.5 | 25.6 | |
| 20030305 13h38 adjustment based on 20030211-021516 |
| 20030211-021516 | 160 | 16 | 24.6 | 24.1 | 21.8 | 21.1 |
19.6 | 7.6 | |
| 20030211 1h42 adjustment based on 20030119-004817 |
| 20030119-004817 | 160 | 16 | 26.2 | 25.3 | 22.1 | 21.4 |
21.5 | 11.2 | |
| 20030118-235710 | 80 | 16 | 30.4 | 29.1 | 25.5 | 24.7 | 28.2 |
| 20030118 17h34 adjustment based on 20021218-040740 |
| 20021218-040740 | 160 | 16 | 25.6 | 25.0 | 22.6 | 21.9 |
21.4 | 12.3 | |
| 20021218 3h18 adjustment based on 20021104-031328 |
| 20021204-003719 | 160 | 6 | 28.4 | 27.2 | 23.9 | 23.1 |
23.0 | 16.2 | |
| 20021104-085423 | 80 | 16 | 39.6 | 38.7 | 34.9 | 33.6 | 45.9 | | *** |
| 20021104-064727 | 80 | 16 | 32.4 | 31.5 | 28.8 | 28.2 | 37.1 | | *** |
| 20021104-031328 | 160 | 16 | 26.8 | 26.1 | 23.1 | 22.3 |
23.0 | 13.4 | |
| 20021104 2h35 adjustment based on 20021021-033800 |
| 20021021-033800 | 160 | 16 | 34.0 | 32.8 | 28.8 | 27.8 |
37.6 | 43.4 | |
| 20020908-004225 | 80 | 60 | 35.1 | 33.5 | 28.2 | 26.8 | 40.2 | |
| 20020907-225833 | 160 | 59 | 38.3
| | 32.9 | |
33.2 | 30.3 | |
| 20020827-150302 | 80 | 6 | 44.4 | 43.4 | 39.2 | 37.5 | 52.3 | | *** |
| 20020808-040833 | 160 | 6 | 34.6 | 33.0 | 28.3 | 27.3 |
38.5 | 34.5 | |
| 20020808-030827 | 80 | 32 | 37.6 | 36.2 | 32.3 | 31.3 | 43.0 | |
| 20020808-020537 | 80 | 6 | 37.9 | 36.5 | 32.5 | 31.5 | 43.4 | |
| 20020615-234633 | 80 | 6 | 39.4 | 38.2 | 34.1 | 33.1 | 46.4 | |
| 20020615-221559 | 80 | 6 | 40.9 | 39.5 | 35.4 | 34.4 | 48.3 | |
| 20020615-200010 | 80 | 6 | 39.3 | 38.3 | 35.0 | 34.0 | 46.9 | |
| 20020602-163048 | 80 | 24 | 42.6 | 40.8 | 35.6 | 34.3 | 50.7 | | *** |
| 20020602-122052 | 80 | 24 | 43.0 | 41.5 | 36.6 | 35.4 | 52.0 | | *** |
| 20020602-112531 | 80 | 24 | 43.4 | 42.1 | 37.7 | 36.4 | 52.8 | | *** |
| 20020527-210218 | 80 | 24 | 40.7 | 39.5 | 35.9 | 35.1 | 47.7 | |
| 20020527-184810 | 80 | 24 | 40.9 | 39.5 | 35.7 | 34.6 | 48.0 | | *** |
| 20020527-162514 | 80 | 24 | 41.2 | 39.8 | 35.7 | 34.6 | 49.6 | | *** |
| 20020516-070232 | 80 | 24 | 46.9 | 45.7 | 42.0 | 41.2 | 57.6 | | *** |
| 20020515-201043 | 80 | 1 | 43.8 | 42.3 | 37.1 | 35.8 | 51.7 | |
| 20020512-184645 | 80 | 24 | 49.2 | 48.1 | 39.9 | 38.8 | 59.5 | | *** (sect 2 panels stuck) |
| 20020503-043423 | 80 | 24 | 42.7 | 41.4 | 37.5 | 36.7 | 48.5 | |
| 20020430-222641 | 80 | 24 | 41.4 | 40.4 | 36.7 | 35.6 | 49.4 | |
| 20020430-205357 | 80 | 24 | 41.8 | 41.0 | 38.0 | 37.1 | 48.3 | |
| 20020414-154742 | 160 | 24 | 33.5 | 31.6 | 26.5 | 25.2 | 36.7 | 33.5 | *** |
| 20020212-214123 | 160 | 24 | 43.6 | 41.7 | 33.9 | 31.9 | 42.6 | 38.3 | |
| 20020201 16h44 adjustment using moves obtained with RxH2 analysis software |
| 20020120-215205 | 80 | 24 | 46.5 | 44.1 | 36.2 | 34.8 | 51.1 | |
| 20020101-042033 | 160 | 24 | 38.5 | 36.4 | 30.2 | 28.6 | 45.4 | 42.2 | |
| 20020101-022538 | 80 | 24 | 36.8 | 34.8 | 28.8 | 27.2 | 44.7 | |
| 20011228 11h30 adjustment using moves obtained with RxH2 analysis software |
| 20011205-050455 | 160 | 24 | 44.1 | 42.4 | 38.5 | 37.7 | 46.2 | | coma? |
| 20011205-024049 | 80 | 24 | 47.7 | 45.4 | 39.6 | 38.3 | 50.6 | |
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