ASTROSAT CZTI

Data Quality Report

Orbit 17429

Creation date: 2024-06-27T17:36:25.324567
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/AS1A05_198T01_9000002578_17429cztM0_level2.evt modeM0/AS1A05_198T01_9000002578_17429cztM0_level2_quad_clean.evt
Size (bytes)497,321,28090,763,200
Size474.3 MB 86.6 MB
Events in quadrant A3,237,936592,706
Events in quadrant B3,768,029593,405
Events in quadrant C3,312,245564,676
Events in quadrant D4,298,435540,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138992
B0154462
C0139162
D0171012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6554811.235886%
B65541592.425999%
C65541161.769912%
D65543395.172414%

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 7589 6555 0 0 0.00% 0.00%
B 7589 6555 32 32 0.42% 0.49%
C 7589 6555 0 0 0.00% 0.00%
D 7589 6555 275 275 3.62% 4.20%

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 4 2 25565 144.96 834 817 170.7
A 0 226 7450 38.85 834 817 170.7
A 12 194 6229 31.7 834 817 170.7
B 7 220 261446 1634.22 831 811 159.5
B 4 216 88430 549.38 831 811 159.5
B 15 19 73897 458.26 831 811 159.5
C 14 238 122011 660.99 785 791 183.4
C 5 218 83533 451.18 785 791 183.4
C 5 219 23688 124.85 785 791 183.4
D 13 232 560793 2892.54 785 762 193.6
D 15 0 282656 1455.97 785 762 193.6
D 1 52 153868 790.79 785 762 193.6

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