ASTROSAT CZTI

Data Quality Report

Orbit 46593

Creation date: 2024-06-27T23:25:12.415085
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/AS1A13_092T03_9000006234_46593cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46593cztM0_level2_quad_clean.evt
Size (bytes)517,659,840111,718,080
Size493.7 MB 106.5 MB
Events in quadrant A6,896,965723,545
Events in quadrant B3,556,384764,252
Events in quadrant C3,263,710746,294
Events in quadrant D4,902,950662,276

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251862
B0152132
C0147462
D0193352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69854005.726557%
B69852713.879742%
C69851311.875447%
D69853244.638511%

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 7745 6987 13 13 0.17% 0.19%
B 7745 6987 59 59 0.76% 0.84%
C 7745 6987 8 8 0.10% 0.11%
D 7745 6987 146 146 1.89% 2.09%

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 3631717 21940.13 795 777 165.5
A 15 235 78646 470.52 795 777 165.5
A 9 191 56848 338.81 795 777 165.5
B 4 171 186849 1170.06 802 776 159.0
B 0 245 37528 231.1 802 776 159.0
B 12 0 25977 158.47 802 776 159.0
C 14 254 105629 560.33 791 794 187.1
C 12 249 24014 124.11 791 794 187.1
C 12 250 22638 116.75 791 794 187.1
D 1 52 868782 4432.83 785 760 195.8
D 13 249 298410 1520.05 785 760 195.8
D 2 37 251409 1280.02 785 760 195.8

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