ASTROSAT CZTI

Data Quality Report

Orbit 13086

Creation date: 2024-06-27T16:36:06.715913
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/AS1A04_067T01_9000001926_13086cztM0_level2.evt modeM0/AS1A04_067T01_9000001926_13086cztM0_level2_quad_clean.evt
Size (bytes)621,161,28092,989,440
Size592.4 MB 88.7 MB
Events in quadrant A3,972,537574,165
Events in quadrant B5,442,817559,381
Events in quadrant C4,504,906565,459
Events in quadrant D4,332,882544,139

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248
B0249
C0247
D0246

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020946
B021040
C021042
D021044

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213814400
B0265805171
C0238084845
D0233445023

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8267270.326600%
B81985186.318614%
C82581611.949625%
D8225500.607903%

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 12767 8545 0 0 0.00% 0.00%
B 12764 8486 304 304 2.38% 3.58%
C 12766 8556 133 133 1.04% 1.55%
D 12764 8514 35 35 0.27% 0.41%

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 88898 442.77 992 971 198.6
A 8 192 37424 183.57 992 971 198.6
A 1 162 17462 83.04 992 971 198.6
B 0 85 776324 4356.74 954 933 178.0
B 4 239 760489 4267.77 954 933 178.0
B 0 219 74341 412.46 954 933 178.0
C 15 208 826917 3862.93 940 944 213.8
C 13 61 7038 28.5 940 944 213.8
C 0 207 4564 16.93 940 944 213.8
D 1 52 543207 2436.82 942 914 222.5
D 10 157 94791 421.84 942 914 222.5
D 7 80 71769 318.39 942 914 222.5

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