ASTROSAT CZTI

Data Quality Report

Orbit 05519

Creation date: 2024-06-27T14:56:13.628995
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/AS1G06_168T23_9000000706_05519cztM0_level2.evt modeM0/AS1G06_168T23_9000000706_05519cztM0_level2_quad_clean.evt
Size (bytes)607,700,16077,618,880
Size579.5 MB 74.0 MB
Events in quadrant A3,762,621464,970
Events in quadrant B4,522,134451,977
Events in quadrant C5,345,903435,915
Events in quadrant D4,230,816440,857

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168373
B0188192
C0213512
D0181732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80021692.111972%
B80023183.974006%
C80024335.411147%
D80022212.761810%

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 8592 8006 2 2 0.02% 0.02%
B 8592 8006 34 34 0.40% 0.42%
C 8592 8005 205 205 2.39% 2.56%
D 8592 8006 125 125 1.45% 1.56%

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 15 174 19553 93.82 962 940 198.4
A 0 50 15437 73.07 962 940 198.4
A 0 226 9666 43.98 962 940 198.4
B 15 204 336339 1776.02 964 942 188.8
B 10 16 149304 785.62 964 942 188.8
B 11 51 62603 326.51 964 942 188.8
C 9 247 1684091 7774.15 919 925 216.5
C 1 16 31452 141.0 919 925 216.5
C 1 241 28820 128.84 919 925 216.5
D 2 33 346039 1500.42 924 892 230.0
D 2 152 165574 715.9 924 892 230.0
D 2 63 68740 294.95 924 892 230.0

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