ASTROSAT CZTI

Data Quality Report

Orbit 07799

Creation date: 2024-06-27T15:24:09.486535
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/AS1G06_032T01_9000001074_07799cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07799cztM0_level2_quad_clean.evt
Size (bytes)435,384,000103,026,240
Size415.2 MB 98.3 MB
Events in quadrant A3,048,243669,189
Events in quadrant B3,168,010697,323
Events in quadrant C3,217,897663,990
Events in quadrant D3,302,482629,195

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134503
B0137762
C0139102
D0143812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6605140.211961%
B6605250.378501%
C6605260.393641%
D6605410.620742%

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 7790 6606 5 5 0.06% 0.08%
B 7790 6605 1 1 0.01% 0.02%
C 7790 6606 17 17 0.22% 0.26%
D 7790 6605 31 31 0.40% 0.47%

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 15 239 63677 400.64 771 755 157.1
A 8 255 15916 96.53 771 755 157.1
A 0 226 7166 40.82 771 755 157.1
B 4 173 30491 202.64 789 773 146.7
B 0 214 25763 170.4 789 773 146.7
B 12 111 14503 93.62 789 773 146.7
C 4 254 138775 784.79 763 768 175.9
C 9 243 88954 501.48 763 768 175.9
C 1 16 10622 56.04 763 768 175.9
D 2 152 353155 1939.37 749 727 181.7
D 13 137 37292 201.21 749 727 181.7
D 12 221 31850 171.27 749 727 181.7

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