ASTROSAT CZTI

Data Quality Report

Orbit 14454

Creation date: 2024-06-27T16:55:24.089641
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/AS1G08_025T01_9000002130_14454cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14454cztM0_level2_quad_clean.evt
Size (bytes)496,753,92076,389,120
Size473.7 MB 72.9 MB
Events in quadrant A3,429,923477,889
Events in quadrant B3,584,702463,460
Events in quadrant C3,596,650457,084
Events in quadrant D3,980,104449,395

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143983
B0150032
C0148592
D0161452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6677380.569118%
B6677751.123259%
C6677230.344466%
D66772363.534521%

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 7618 6678 0 0 0.00% 0.00%
B 7617 6677 19 19 0.25% 0.28%
C 7617 6677 0 0 0.00% 0.00%
D 7617 6677 222 222 2.91% 3.32%

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 91492 534.87 824 805 169.5
A 14 14 63787 371.47 824 805 169.5
A 8 15 62835 365.85 824 805 169.5
B 0 189 125566 798.57 814 793 156.2
B 0 182 72683 460.11 814 793 156.2
B 0 219 61222 386.76 814 793 156.2
C 3 233 499337 2722.49 790 793 183.1
C 7 247 14388 74.24 790 793 183.1
C 13 61 5758 27.11 790 793 183.1
D 10 199 703785 3402.45 787 768 206.6
D 12 110 101596 487.99 787 768 206.6
D 2 152 62986 301.12 787 768 206.6

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