ASTROSAT CZTI

Data Quality Report

Orbit 43884

Creation date: 2024-06-27T22:56:51.704528
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/AS1C07_001T10_9000005910_43884cztM0_level2.fits modeM0/AS1C07_001T10_9000005910_43884cztM0_level2_quad_clean.evt
Size (bytes)566,979,840116,219,520
Size540.7 MB 110.8 MB
Events in quadrant A6,146,595746,136
Events in quadrant B3,914,429828,514
Events in quadrant C3,535,942773,421
Events in quadrant D6,812,643652,247

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231110
B0167960
C0161190
D0254290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74525957.984434%
B7452560.751476%
C7453791.059976%
D745381710.962029%

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 7452 7452 550 550 7.38% 7.38%
B 7452 7452 17 17 0.23% 0.23%
C 7453 7453 55 55 0.74% 0.74%
D 7453 7453 867 867 11.63% 11.63%

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 15 222 1869746 11537.04 778 759 162.0
A 10 83 949284 5855.13 778 759 162.0
A 15 223 266847 1642.53 778 759 162.0
B 7 205 217131 1362.25 811 786 158.8
B 0 183 207759 1303.24 811 786 158.8
B 0 213 83111 518.37 811 786 158.8
C 15 158 132007 707.56 790 794 185.4
C 3 233 91427 488.74 790 794 185.4
C 14 254 72972 389.22 790 794 185.4
D 13 171 1319018 6823.24 765 740 193.2
D 1 52 748790 3871.81 765 740 193.2
D 7 80 555524 2871.49 765 740 193.2

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