ASTROSAT CZTI

Data Quality Report

Orbit 14789

Creation date: 2024-06-27T16:59:42.570718
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_022T02_9000002184_14789cztM0_level2.evt modeM0/AS1A04_022T02_9000002184_14789cztM0_level2_quad_clean.evt
Size (bytes)470,347,20098,455,680
Size448.6 MB 93.9 MB
Events in quadrant A3,245,188644,444
Events in quadrant B3,652,773644,528
Events in quadrant C3,737,613626,733
Events in quadrant D3,166,479611,588

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136333
B0149512
C0151632
D0138022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6516510.782689%
B65161291.979742%
C6516410.629220%
D6516771.181707%

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 7692 6518 2 2 0.03% 0.03%
B 7692 6518 38 38 0.49% 0.58%
C 7692 6518 0 0 0.00% 0.00%
D 7692 6518 37 37 0.48% 0.57%

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 12 189 60218 362.18 812 797 164.1
A 13 248 20666 121.1 812 797 164.1
A 9 143 15539 89.85 812 797 164.1
B 10 16 233827 1545.0 801 782 150.8
B 3 64 155672 1026.86 801 782 150.8
B 0 219 43184 281.11 801 782 150.8
C 3 233 733743 4147.88 769 772 176.7
C 13 61 5547 27.02 769 772 176.7
C 7 247 4517 21.19 769 772 176.7
D 15 0 138191 684.22 767 748 200.9
D 12 4 59164 290.81 767 748 200.9
D 2 234 23055 111.05 767 748 200.9

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