ASTROSAT CZTI

Data Quality Report

Orbit 19188

Creation date: 2024-06-27T17:59:53.110451
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/AS1A05_046T01_9000002838_19188cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19188cztM0_level2_quad_clean.evt
Size (bytes)608,264,64065,119,680
Size580.1 MB 62.1 MB
Events in quadrant A3,268,889380,791
Events in quadrant B3,405,065388,053
Events in quadrant C3,557,747376,130
Events in quadrant D7,735,959359,566

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139402
B0143352
C0145802
D0276692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6698741.104807%
B6699861.283774%
C6699991.477833%
D6699128519.181967%

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 7673 6698 0 0 0.00% 0.00%
B 7674 6699 7 7 0.09% 0.10%
C 7674 6699 0 0 0.00% 0.00%
D 7674 6699 759 759 9.89% 11.33%

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 8 205 38675 223.69 839 821 169.2
A 13 254 7357 38.62 839 821 169.2
A 0 226 7151 37.4 839 821 169.2
B 0 189 28265 171.26 836 817 160.3
B 7 220 26188 158.3 836 817 160.3
B 12 111 19114 114.16 836 817 160.3
C 3 233 287523 1515.24 807 814 189.2
C 14 238 123972 650.88 807 814 189.2
C 13 61 5435 24.42 807 814 189.2
D 10 66 4646043 24426.42 781 759 190.2
D 11 176 80802 420.89 781 759 190.2
D 1 52 55170 286.11 781 759 190.2

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