ASTROSAT CZTI

Data Quality Report

Orbit 23046

Creation date: 2024-06-27T18:49:47.947982
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/AS1A07_054T01_9000003406_23046cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23046cztM0_level2_quad_clean.evt
Size (bytes)461,427,840109,535,040
Size440.1 MB 104.5 MB
Events in quadrant A3,108,510723,897
Events in quadrant B3,418,885744,315
Events in quadrant C3,049,729708,041
Events in quadrant D3,954,215686,629

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137341
B0144902
C0134601
D0162671

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6526711.087956%
B65251492.283525%
C6525671.026820%
D65252453.754789%

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 7451 6527 39 39 0.52% 0.60%
B 7450 6526 78 78 1.05% 1.20%
C 7450 6526 1 1 0.01% 0.02%
D 7450 6526 243 243 3.26% 3.72%

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 6 16 167705 1108.11 757 743 150.7
A 2 79 24479 157.53 757 743 150.7
A 13 254 9594 58.74 757 743 150.7
B 10 247 202321 1412.2 758 740 142.7
B 3 64 94146 654.37 758 740 142.7
B 4 216 58438 404.21 758 740 142.7
C 14 238 117945 695.1 728 732 168.6
C 0 207 56386 330.04 728 732 168.6
C 0 10 32653 189.3 728 732 168.6
D 1 52 955447 5467.45 724 703 174.6
D 5 222 169454 966.37 724 703 174.6
D 13 153 34864 195.62 724 703 174.6

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