ASTROSAT CZTI

Data Quality Report

Orbit 05166

Creation date: 2024-06-27T14:52:11.663245
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/AS1G05_214T01_9000000652_05166cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05166cztM0_level2_quad_clean.evt
Size (bytes)476,709,12059,791,680
Size454.6 MB 57.0 MB
Events in quadrant A3,316,208341,458
Events in quadrant B3,469,441350,556
Events in quadrant C3,083,117347,431
Events in quadrant D4,123,790314,080

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140303
B0143992
C0133612
D0168132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6550490.748092%
B6550430.656489%
C6550110.167939%
D65501762.687023%

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 7840 6551 19 19 0.24% 0.29%
B 7840 6551 3 3 0.04% 0.05%
C 7840 6551 0 0 0.00% 0.00%
D 7840 6551 169 169 2.16% 2.58%

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 0 247 92844 556.98 807 791 165.3
A 4 2 92373 554.13 807 791 165.3
A 0 226 17810 102.98 807 791 165.3
B 4 80 203087 1288.82 826 810 156.9
B 15 204 50762 318.27 826 810 156.9
B 0 219 17848 108.56 826 810 156.9
C 1 16 14685 76.33 786 794 182.0
C 13 61 6473 31.21 786 794 182.0
C 3 202 2032 6.8 786 794 182.0
D 13 53 806552 4310.74 765 743 186.9
D 2 33 307070 1638.72 765 743 186.9
D 2 221 47454 249.88 765 743 186.9

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