ASTROSAT CZTI

Data Quality Report

Orbit 42209

Creation date: 2024-06-27T22:38:41.876048
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/AS1A12_088T52_9000005778_42209cztM0_level2.fits modeM0/AS1A12_088T52_9000005778_42209cztM0_level2_quad_clean.evt
Size (bytes)377,089,92091,275,840
Size359.6 MB 87.0 MB
Events in quadrant A3,114,772620,560
Events in quadrant B3,407,402600,384
Events in quadrant C2,571,182610,330
Events in quadrant D4,439,326549,163

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125502
B0137542
C0110643
D0169492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5475470.858447%
B54753606.575342%
C547430.054805%
D54741352.466204%

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 7178 5476 32 32 0.45% 0.58%
B 7178 5476 330 330 4.60% 6.03%
C 7177 5475 0 0 0.00% 0.00%
D 7177 5475 153 153 2.13% 2.79%

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 10 83 575042 4462.04 621 607 128.7
A 15 222 95610 737.96 621 607 128.7
A 13 248 23983 181.58 621 607 128.7
B 7 202 804137 7014.28 593 578 114.6
B 0 229 95206 826.01 593 578 114.6
B 0 245 81408 705.56 593 578 114.6
C 15 214 231368 1634.6 600 604 141.2
C 13 61 3927 23.54 600 604 141.2
C 7 220 2106 10.64 600 604 141.2
D 1 52 1629305 10968.72 597 578 148.5
D 2 249 199971 1342.82 597 578 148.5
D 12 6 61446 409.92 597 578 148.5

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