ASTROSAT CZTI

Data Quality Report

Orbit 19089

Creation date: 2024-06-27T17:58:54.908593
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_046T01_9000002834_19089cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19089cztM0_level2_quad_clean.evt
Size (bytes)514,154,88092,499,840
Size490.3 MB 88.2 MB
Events in quadrant A3,455,794588,468
Events in quadrant B4,585,272597,792
Events in quadrant C3,525,013580,376
Events in quadrant D3,545,371562,599

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146542
B0182682
C0147942
D0150862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67701191.757755%
B67703495.155096%
C67701402.067947%
D67711061.565500%

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 8915 6771 20 20 0.22% 0.30%
B 8915 6771 95 95 1.07% 1.40%
C 8915 6772 1 1 0.01% 0.01%
D 8916 6772 23 23 0.26% 0.34%

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 9 143 91179 516.56 868 851 174.9
A 15 174 19938 109.15 868 851 174.9
A 13 254 7990 40.83 868 851 174.9
B 3 112 874350 5281.61 864 843 165.4
B 6 36 69722 416.47 864 843 165.4
B 0 189 57825 344.54 864 843 165.4
C 14 238 129663 647.84 842 849 198.8
C 3 233 85584 426.16 842 849 198.8
C 0 207 22690 109.84 842 849 198.8
D 1 52 142959 684.93 849 822 207.5
D 7 238 84274 402.14 849 822 207.5
D 7 96 34867 164.06 849 822 207.5

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