ASTROSAT CZTI

Data Quality Report

Orbit 22913

Creation date: 2024-06-27T18:47:23.928612
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/AS1A08_009T01_9000003382_22913cztM0_level2.evt modeM0/AS1A08_009T01_9000003382_22913cztM0_level2_quad_clean.evt
Size (bytes)479,134,080107,147,520
Size456.9 MB 102.2 MB
Events in quadrant A3,165,154718,528
Events in quadrant B3,265,303736,587
Events in quadrant C3,064,360690,175
Events in quadrant D4,591,570663,586

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131992
B0135893
C0130832
D0179642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A625460.095939%
B6253801.279386%
C6253410.655685%
D62533565.693267%

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 7604 6255 0 0 0.00% 0.00%
B 7603 6254 47 47 0.62% 0.75%
C 7603 6254 0 0 0.00% 0.00%
D 7603 6254 248 248 3.26% 3.97%

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 0 23 72382 456.02 791 777 157.0
A 13 252 39264 245.11 791 777 157.0
A 0 226 10871 64.28 791 777 157.0
B 6 36 133933 908.32 788 770 146.6
B 12 111 17053 111.07 788 770 146.6
B 11 111 14947 96.7 788 770 146.6
C 14 238 123570 718.83 746 753 170.9
C 7 247 11550 63.19 746 753 170.9
C 0 10 9722 52.49 746 753 170.9
D 1 52 739700 4194.0 738 717 176.2
D 13 172 662834 3757.76 738 717 176.2
D 13 174 181055 1023.49 738 717 176.2

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