ASTROSAT CZTI

Data Quality Report

Orbit 32347

Creation date: 2024-06-27T20:39:08.579966
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/AS1A10_005T01_9000004700_32347cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32347cztM0_level2_quad_clean.evt
Size (bytes)594,432,00097,130,880
Size566.9 MB 92.6 MB
Events in quadrant A3,266,280654,524
Events in quadrant B6,035,211621,177
Events in quadrant C3,500,741609,056
Events in quadrant D4,759,536602,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139372
B0223851
C0143541
D0188821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6515610.936301%
B65154046.201074%
C65151442.210284%
D65151752.686109%

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 7510 6516 2 2 0.03% 0.03%
B 7510 6516 219 219 2.92% 3.36%
C 7510 6516 11 11 0.15% 0.17%
D 7510 6516 101 101 1.34% 1.55%

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 12 189 103138 638.69 800 784 160.3
A 15 174 31980 194.66 800 784 160.3
A 13 6 31102 189.18 800 784 160.3
B 6 159 1903780 12978.87 771 754 146.6
B 5 172 793092 5403.84 771 754 146.6
B 0 190 125978 854.04 771 754 146.6
C 3 233 186315 1045.94 757 762 177.4
C 14 238 139690 783.12 757 762 177.4
C 0 10 77725 433.83 757 762 177.4
D 8 195 1023720 5522.56 771 751 185.2
D 12 233 301581 1624.05 771 751 185.2
D 14 52 81004 433.25 771 751 185.2

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