ASTROSAT CZTI

Data Quality Report

Orbit 29384

Creation date: 2024-06-27T20:03:42.165804
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/AS1T03_280T01_9000004222_29384cztM0_level2.evt modeM0/AS1T03_280T01_9000004222_29384cztM0_level2_quad_clean.evt
Size (bytes)608,785,92094,366,080
Size580.6 MB 90.0 MB
Events in quadrant A3,068,563642,062
Events in quadrant B3,210,600649,897
Events in quadrant C3,620,209621,422
Events in quadrant D8,149,701543,038

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123251
B0128891
C0148321
D0282493

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5732410.715283%
B5733751.308216%
C57331392.424560%
D5732163728.558967%

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 7037 5733 0 0 0.00% 0.00%
B 7038 5734 5 5 0.07% 0.09%
C 7038 5734 0 0 0.00% 0.00%
D 7037 5733 1351 1351 19.20% 23.57%

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 13 254 11343 68.2 793 781 154.9
A 1 113 7702 44.69 793 781 154.9
A 0 226 6899 39.5 793 781 154.9
B 0 229 53703 367.7 778 760 144.0
B 0 190 45821 312.96 778 760 144.0
B 5 255 32721 221.98 778 760 144.0
C 3 233 415818 2320.98 769 780 178.8
C 14 238 141859 788.94 769 780 178.8
C 14 254 23896 129.27 769 780 178.8
D 12 33 2619063 15913.95 697 681 164.5
D 1 52 1840670 11183.05 697 681 164.5
D 8 195 465317 2823.96 697 681 164.5

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