ASTROSAT CZTI

Data Quality Report

Orbit 45834

Creation date: 2024-06-27T23:16:40.440560
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/AS1T05_185T01_9000006128_45834cztM0_level2.fits modeM0/AS1T05_185T01_9000006128_45834cztM0_level2_quad_clean.evt
Size (bytes)563,365,440108,593,280
Size537.3 MB 103.6 MB
Events in quadrant A6,027,839726,238
Events in quadrant B6,154,467719,371
Events in quadrant C2,941,225737,200
Events in quadrant D5,218,274643,907

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223052
B0228604
C0134412
D0200602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66181632.462980%
B66176219.384918%
C6617120.181351%
D66172694.065286%

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 7688 6619 45 45 0.59% 0.68%
B 7687 6618 307 307 3.99% 4.64%
C 7687 6618 1 1 0.01% 0.02%
D 7687 6618 190 190 2.47% 2.87%

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 2901098 19076.49 732 716 152.0
A 13 248 272122 1785.1 732 716 152.0
A 13 254 11949 73.88 732 716 152.0
B 3 112 2738507 19420.67 725 703 141.0
B 4 171 156633 1106.09 725 703 141.0
B 5 63 150071 1059.54 725 703 141.0
C 3 233 40282 227.09 739 743 174.1
C 0 207 7249 37.37 739 743 174.1
C 10 20 6852 35.09 739 743 174.1
D 11 241 1342140 7518.37 714 693 178.4
D 13 249 291064 1627.43 714 693 178.4
D 1 52 238629 1333.55 714 693 178.4

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