ASTROSAT CZTI

Data Quality Report

Orbit 03613

Creation date: 2024-06-27T14:31:36.946396
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/AS1G05_234T02_9000000474_03613cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03613cztM0_level2_quad_clean.evt
Size (bytes)643,472,64060,644,160
Size613.7 MB 57.8 MB
Events in quadrant A3,087,996350,135
Events in quadrant B3,991,643345,797
Events in quadrant C8,722,599322,212
Events in quadrant D3,218,437336,861

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140523
B0162802
C0308212
D0145312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6907831.201679%
B69071121.621543%
C6907135419.603301%
D6907831.201679%

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 8497 6909 0 0 0.00% 0.00%
B 8497 6909 14 14 0.16% 0.20%
C 8497 6909 1108 1108 13.04% 16.04%
D 8497 6909 11 11 0.13% 0.16%

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 8 15 10202 57.08 792 771 165.2
A 14 238 9762 54.42 792 771 165.2
A 0 226 8238 45.19 792 771 165.2
B 15 204 623441 3958.88 802 782 157.3
B 0 182 87281 549.96 802 782 157.3
B 5 172 64464 404.89 802 782 157.3
C 2 53 5772717 34275.35 722 725 168.4
C 9 247 119175 703.38 722 725 168.4
C 13 61 6193 32.47 722 725 168.4
D 8 195 98155 522.5 764 740 186.4
D 13 223 63550 336.89 764 740 186.4
D 7 223 55532 293.88 764 740 186.4

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
Veto Counter