ASTROSAT CZTI

Data Quality Report

Orbit 11393

Creation date: 2024-06-27T16:12:18.455493
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/AS1A04_022T04_9000001666_11393cztM0_level2.evt modeM0/AS1A04_022T04_9000001666_11393cztM0_level2_quad_clean.evt
Size (bytes)430,891,20065,891,520
Size410.9 MB 62.8 MB
Events in quadrant A2,654,932406,332
Events in quadrant B3,707,433396,035
Events in quadrant C2,434,200440,527
Events in quadrant D3,890,679378,927

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114972
B0146731
C0109411
D0152671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5323380.713883%
B53233165.936502%
C5323210.394514%
D53234308.078151%

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 6333 5324 4 4 0.06% 0.08%
B 6333 5324 138 138 2.18% 2.59%
C 6333 5324 0 0 0.00% 0.00%
D 6333 5324 337 337 5.32% 6.33%

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 5 219189 1718.66 621 608 127.2
A 11 29 10697 79.33 621 608 127.2
A 1 162 10458 77.45 621 608 127.2
B 4 239 1075804 9285.18 612 596 115.8
B 11 51 145952 1255.25 612 596 115.8
B 15 204 47823 407.84 612 596 115.8
C 13 61 4523 26.64 624 629 146.2
C 3 202 1555 6.33 624 629 146.2
C 3 203 1363 5.02 624 629 146.2
D 10 253 1127392 7884.05 592 576 142.9
D 13 104 155296 1082.54 592 576 142.9
D 1 52 142900 995.81 592 576 142.9

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