ASTROSAT CZTI

Data Quality Report

Orbit 33216

Creation date: 2024-06-27T20:46:12.181177
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/AS1T04_066T01_9000004772_33216cztM0_level2.evt modeM0/AS1T04_066T01_9000004772_33216cztM0_level2_quad_clean.evt
Size (bytes)574,081,92057,202,560
Size547.5 MB 54.6 MB
Events in quadrant A2,668,120348,121
Events in quadrant B3,649,610344,470
Events in quadrant C2,801,839344,803
Events in quadrant D7,890,790305,190

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112293
B0143642
C0118042
D0273532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A555860.107953%
B55581442.590860%
C5558701.259446%
D555863811.478949%

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 7260 5559 0 0 0.00% 0.00%
B 7260 5559 84 84 1.16% 1.51%
C 7260 5559 52 52 0.72% 0.94%
D 7260 5559 682 682 9.39% 12.27%

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 47 42218 305.08 677 663 136.2
A 13 254 9523 65.05 677 663 136.2
A 14 254 6684 44.2 677 663 136.2
B 4 170 336892 2631.05 668 652 127.8
B 5 172 331272 2587.07 668 652 127.8
B 0 219 167500 1305.57 668 652 127.8
C 0 10 204812 1364.46 649 656 149.6
C 15 159 20694 133.92 649 656 149.6
C 14 67 15330 98.07 649 656 149.6
D 8 195 4061487 24695.94 634 619 164.4
D 2 250 547721 3327.17 634 619 164.4
D 10 203 262306 1591.43 634 619 164.4

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