Difference between revisions of "WAFTT results part 3"

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In this posting we study the effects of different scan strategies in the presence of atmospheric effects on the forecasts of Neff.
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=== Depth maps ===
 
=== Depth maps ===
  

Revision as of 10:23, 22 April 2019

In this posting we study the effects of different scan strategies in the presence of atmospheric effects on the forecasts of Neff.

Depth maps

Total depth 095GHz.png

Noise characteristics for minimum elevation of 50 degrees

No elevation penalty

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 56.8 52.0 45.2 38.9
Effective sky fraction for noise (in %) 51.6 47.1 40.8 34.8
Effective sky fraction for signal (in %) 47.3 43.0 37.2 31.6


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 7.8 9.1 1.2 1.7 6.3 10.8
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 11.0 12.8 1.7 2.4 8.9 15.3
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1

With elevation penalty

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 56.8 52.0 45.2 38.8
Effective sky fraction for noise (in %) 51.1 46.6 40.4 34.3
Effective sky fraction for signal (in %) 45.9 41.7 36.0 30.6


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 7.6 8.9 1.2 1.6 6.2 10.6
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 10.8 12.5 1.7 2.3 8.7 15.0
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1

High cadence survey

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 57.9 52.7 45.6 39.4
Effective sky fraction for noise (in %) 47.3 43.1 37.1 31.7
Effective sky fraction for signal (in %) 38.2 34.8 30.0 25.3


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 7.5 8.8 1.2 1.6 6.0 10.4
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 10.6 12.4 1.7 2.3 8.5 14.7
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1

Noise characteristics for minimum elevation of 40 degrees

No elevation penalty

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 68.2 62.5 55.1 48.1
Effective sky fraction for noise (in %) 63.5 58.3 51.2 44.5
Effective sky fraction for signal (in %) 59.2 54.3 47.5 41.1


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 8.7 10.4 1.4 1.9 7.2 12.4
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 12.3 14.7 2.0 2.7 10.1 17.6
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1
Penalty (relative to f_sky scaling) 1.01 1.03 1.02 1.02 1.03 1.03

With elevation penalty

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 68.2 62.6 55.2 4812
Effective sky fraction for noise (in %) 61.3 56.2 49.3 42.7
Effective sky fraction for signal (in %) 54.9 50.2 43.8 37.7


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 8.4 9.8 1.3 1.8 6.8 11.6
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 11.9 13.8 1.9 2.5 9.6 16.4
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1
Penalty (relative to f_sky scaling) 1.00 1.01 1.01 1.01 1.01 1.01

High cadence survey

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 67.6 61.4 53.9 46.8
Effective sky fraction for noise (in %) 58.6 53.3 46.4 39.4
Effective sky fraction for signal (in %) 50.0 45.5 39.4 33.8


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 8.5 10.3 1.4 1.9 7.1 12.4
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 12.0 14.6 1.9 2.6 10.0 17.5
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1
Penalty (relative to f_sky scaling) 1.03 1.06 1.04 1.04 1.06 1.07

Noise characteristics for minimum elevation of 30 degrees

No elevation penalty

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 75.8 69.3 61.6 53.9
Effective sky fraction for noise (in %) 70.9 64.8 57.3 50.1
Effective sky fraction for signal (in %) 66.2 60.6 53.3 46.5


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 9.5 11.5 1.5 2.1 7.9 13.8
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 13.4 16.3 2.2 2.9 11.2 19.6
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1
Penalty (relative to f_sky scaling) 1.04 1.08 1.06 1.06 1.07 1.09


With elevation penalty

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 75.8 69.3 61.6 53.9
Effective sky fraction for noise (in %) 66.1 60.5 53.3 46.4
Effective sky fraction for signal (in %) 57.6 52.7 46.1 39.8


Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 8.8 10.2 1.4 1.9 7.1 12.2
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 12.5 14.5 2.0 2.7 10.0 17.3
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1
Penalty (relative to f_sky scaling) 1.00 1.02 1.01 1.01 1.02 1.02


High cadence

Galactic cut (in %) 0 10 20 30
Sky fraction (in %) 75.3 68.3 60.3 52.6
Effective sky fraction for noise (in %) 65.5 59.5 52.2 45.5
Effective sky fraction for signal (in %) 54.1 49.2 42.7 37.4
Frequency (GHz) 30 40 90 150 220 270
white noise level TT (uK-arcmin) 9.6 12.0 1.6 2.1 8.2 14.5
ell knee TT 433 395 1315 4651 4511 4525
1/f exponent TT (uK-arcmin) -3.5 -3.4 -3.1 -2.3 -3.4 -3.4
white noise level E/B (uK-arcmin) 13.6 17.0 2.2 3.0 11.6 20.5
ell knee E/B 467 467 467 467 467 467
1/f exponent E/B (uK-arcmin) -1.1 -1.1 -1.1 -1.1 -1.1 -1.1
Penalty (relative to f_sky scaling) 1.08 1.17 1.13 1.12 1.15 1.18