ASTROSAT CZTI

Data Quality Report

Orbit 33189

Creation date: 2024-06-27T20:45:52.962273
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/AS1A11_080T02_9000004768_33189cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33189cztM0_level2_quad_clean.evt
Size (bytes)459,031,68072,288,000
Size437.8 MB 68.9 MB
Events in quadrant A2,549,920460,180
Events in quadrant B3,599,016468,742
Events in quadrant C2,733,678457,718
Events in quadrant D4,657,123428,509

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108133
B0139902
C0114852
D0176422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A534260.112317%
B53421833.425683%
C5342551.029577%
D53421532.864096%

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 7163 5343 0 0 0.00% 0.00%
B 7163 5343 92 92 1.28% 1.72%
C 7163 5343 40 40 0.56% 0.75%
D 7163 5343 118 118 1.65% 2.21%

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 31 14967 109.66 654 640 130.7
A 13 254 9455 67.47 654 640 130.7
A 13 6 8701 61.7 654 640 130.7
B 0 219 505294 4162.11 643 627 121.3
B 5 172 386305 3180.78 643 627 121.3
B 0 155 56040 457.0 643 627 121.3
C 0 10 162141 1126.35 629 636 143.4
C 15 208 27808 189.5 629 636 143.4
C 1 23 24555 166.81 629 636 143.4
D 8 195 1367791 8031.35 622 608 170.2
D 12 218 282402 1655.36 622 608 170.2
D 10 203 170680 999.07 622 608 170.2

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