ASTROSAT CZTI

Data Quality Report

Orbit 40562

Creation date: 2024-06-27T22:17:36.837511
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/AS1A12_054T02_9000005550_40562cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40562cztM0_level2_quad_clean.evt
Size (bytes)327,127,68087,157,440
Size312.0 MB 83.1 MB
Events in quadrant A2,770,937619,989
Events in quadrant B3,237,501631,647
Events in quadrant C2,870,417588,617
Events in quadrant D2,845,318452,759

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109883
B0128722
C0114132
D0116442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4931130.263638%
B4931641.297911%
C4931631.277631%
D4931110622.429527%

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 7055 4932 5 5 0.07% 0.10%
B 7055 4932 35 35 0.50% 0.71%
C 7055 4932 67 67 0.95% 1.36%
D 7055 4932 42 42 0.60% 0.85%

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 10 83 484434 4082.34 583 573 118.5
A 2 79 13873 112.21 583 573 118.5
A 12 189 9823 78.04 583 573 118.5
B 3 112 845426 7764.04 574 559 108.8
B 5 255 49793 452.44 574 559 108.8
B 4 171 40699 368.87 574 559 108.8
C 14 254 457220 3602.77 555 559 126.8
C 15 214 218117 1716.4 555 559 126.8
C 0 10 26992 208.54 555 559 126.8
D 12 191 277539 2220.94 512 498 124.7
D 12 227 187758 1501.2 512 498 124.7
D 12 79 178745 1428.95 512 498 124.7

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