ASTROSAT CZTI

Data Quality Report

Orbit 44433

Creation date: 2024-06-27T23:03:33.884845
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/AS1A13_072T03_9000006000_44433cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44433cztM0_level2_quad_clean.evt
Size (bytes)495,103,680112,011,840
Size472.2 MB 106.8 MB
Events in quadrant A5,030,608749,058
Events in quadrant B3,512,662774,311
Events in quadrant C4,497,839730,345
Events in quadrant D4,743,365651,063

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211032
B0150242
C0180142
D0188332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69872563.663947%
B69872293.277515%
C69872753.935881%
D69874796.855589%

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 7717 6989 2 2 0.03% 0.03%
B 7717 6989 25 25 0.32% 0.36%
C 7717 6989 104 104 1.35% 1.49%
D 7717 6989 274 274 3.55% 3.92%

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 10 83 1866405 11167.57 808 789 167.1
A 10 248 18032 103.22 808 789 167.1
A 7 3 13679 77.16 808 789 167.1
B 5 172 85294 525.5 806 780 160.8
B 0 155 81629 502.72 806 780 160.8
B 0 229 66965 411.54 806 780 160.8
C 3 233 617992 3301.13 792 797 187.0
C 15 208 569226 3040.3 792 797 187.0
C 2 14 110020 584.19 792 797 187.0
D 4 221 891286 4480.0 786 760 198.8
D 2 249 163054 816.46 786 760 198.8
D 13 249 135551 678.1 786 760 198.8

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