Embedded Files
CLASS Maps from April 2022
CLASS Maps from April 2022
Here we recompile some of the main maps produced by CLASS using the drone data from April 2022
Here we recompile some of the main maps produced by CLASS using the drone data from April 2022
SOURCE ON MAPS (APRIL 29)
SOURCE ON MAPS (APRIL 29)
**Mount 1: 40 / 90 GHz arrays, Mount 2: 150 / 220 GHz arrays
Source ON drone maps: 150 GHz camera
Source ON drone maps: 150 GHz camera
Drone maps using CLASS 150 camera on all flights from April 29, 2022.Â
We note that some maps are elongated. We are trying to understand why. The pointing information is solely the GPS information. It could be due to GPS errors during drone accelerations.
Also, note that FLY317 missed the central part of the beam. We think it is due to read-out flux jumps because the signal was too high (-8 dBm instead of the intended -18 dBm)
POWER: TEMPERATURE AND POLARIZATION (SOURCE ON)
POWER: TEMPERATURE AND POLARIZATION (SOURCE ON)
150 GHz Camera
150 GHz Camera
AVERAGES (SOURCE ON)
AVERAGES (SOURCE ON)
Power: temperature and polarization (raw text)
Power: temperature and polarization (raw text)
FLY310: T=4.904e-05+/-2.170e-07, P=-4.399e-06+/-2.191e-08 (pW)
FLY312: T=4.201e-05+/-2.525e-07, P=-3.572e-07+/-4.783e-09 (pW)Â Â Polarization degree -20.7 dB
FLY313: T=nan+/-nan, Â Â Â Â Â Â Â Â Â Â Â Â P=5.317e-06+/-1.106e-07 (pW)
FLY314: T=4.467e-05+/-2.355e-07, P=3.583e-07+/-6.799e-09 (pW)
FLY315: T=nan+/-nan, Â Â Â Â Â Â Â Â Â Â Â Â P=3.544e-06+/-4.833e-08 (pW)
FLY316: T=3.577e-05+/-5.106e-07, P=3.460e-07+/-1.109e-08 (pW)
FLY317: T=1.937e-05+/-1.704e-06, P=3.862e-06+/-1.664e-07 (pW)
FLY318: T=nan+/-nan, Â Â Â Â Â Â Â Â Â Â Â Â P=1.776e-07+/-6.388e-05 (pW)
FLY320: T=4.856e-05+/-5.104e-07, P=4.469e-06+/-5.396e-08 (pW)
FLY321: T=3.440e-05+/-1.092e-06, P=9.152e-08+/-1.094e-07 (pW)
FLY322: T=4.485e-05+/-4.209e-07, P=2.006e-06+/-1.415e-08 (pW)
Drone angular size estimation
Drone angular size estimation
If consideringÂ
Io = 4.8e-5 pW*sr
Po = 4.4e-6 pW*sr
Ptx = -18 dBm
Omega_A = 51 usr
eta = 0.46
duty cycle = 50%
Then:
Expected polarized received power: Prx_t = -100.415333 dBm = 0.0908797 pW
Measured polarized received power: Prx_m = -100.641175 dBm = 0.0862745 pW
Measured total received power: Irx_m = -90.263289 dBm = 0.941176 pW
Drone solid angle if temperature is Td=270 K: O_d = 0.4 usr
Drone angular diameter if temperature is Td=270 K: Th_d = 0.0461 deg
Drone diameter if temperature is Td=270 K: D_d = 40.3 cm
Plot for CMB-S4 meeting poster
Plot for CMB-S4 meeting poster
SOURCE OFF MAPS (April 26 & 27)
SOURCE OFF MAPS (April 26 & 27)
APRIL 26th FLIGHT SUMMARY
APRIL 27th FLIGHT SUMMARY
POWER: TEMPERATURE AND POLARIZATION (SOURCE OFF)
POWER: TEMPERATURE AND POLARIZATION (SOURCE OFF)
150 GHz camera
150 GHz camera
AVERAGES (SOURCE OFF)
Power: temperature and polarization (raw text)
Power: temperature and polarization (raw text)
FLY300: T=1.315e+00+/-2.070e-02, P=-2.675e-03+/-inf (pW)
FLY301: T=1.199e+00+/-3.047e-02, P=-3.365e-03+/-1.019e-04 (pW)Â Polarization degree: -25.5 dB
FLY302: T=1.095e+00+/-1.598e-02, P=-3.504e-03+/-8.588e-05 (pW)
FLY303: T=4.009e+00+/-4.716e-02, P=-6.832e+00+/-2.097e+04 (pW)
FLY306: T=8.515e-01+/-6.478e-03, P=-4.380e-03+/-2.952e-04 (pW)
FLY307: T=9.373e-01+/-1.143e-02, P=nan+/-nan (pW)
FLY308: T=8.742e-01+/-2.358e-02, P=-3.505e-03+/-1.790e-04 (pW)
Source OFF drone maps: 150 GHz camera
Source OFF drone maps: 150 GHz camera
Source OFF drone maps: 90 GHz camera
Source OFF drone maps: 90 GHz camera
MAPS OF SOURCE AND DRONE ACCELERATIONS HISTOGRAMS (APRIL 29)
MAPS OF SOURCE AND DRONE ACCELERATIONS HISTOGRAMS (APRIL 29)
FLY310
FLY312
FLY313
FLY314
FLY315
FLY316
FLY317
FLY318
FLY320
FLY321
FLY322
Polarization angle results from Yunyang. From 150 GHz maps using 2 boresight rotations
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