ASTROSAT CZTI

Data Quality Report

Orbit 23014

Creation date: 2024-06-27T18:48:47.234109
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C05_002T02_9000003402_23014cztM0_level2.evt modeM0/AS1C05_002T02_9000003402_23014cztM0_level2_quad_clean.evt
Size (bytes)542,733,120105,805,440
Size517.6 MB 100.9 MB
Events in quadrant A3,219,748721,332
Events in quadrant B3,348,907750,118
Events in quadrant C3,357,790712,794
Events in quadrant D6,090,877588,019

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135622
B0138742
C0138972
D0223833

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6191300.484574%
B6191610.985301%
C61911051.696010%
D6190114118.432956%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7576 6192 0 0 0.00% 0.00%
B 7576 6192 15 15 0.20% 0.24%
C 7576 6192 7 7 0.09% 0.11%
D 7575 6190 902 902 11.91% 14.57%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 11 47 47942 287.22 821 807 164.1
A 6 16 10955 61.84 821 807 164.1
A 13 254 8307 45.7 821 807 164.1
B 4 216 80409 518.65 826 806 153.5
B 0 189 27304 172.65 826 806 153.5
B 12 111 18053 112.37 826 806 153.5
C 14 238 129937 703.96 797 803 183.4
C 10 9 87855 474.55 797 803 183.4
C 0 10 12227 62.28 797 803 183.4
D 1 52 3283535 19263.12 705 685 170.4
D 13 153 77198 448.96 705 685 170.4
D 2 152 57338 332.43 705 685 170.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter