ASTROSAT CZTI

Data Quality Report

Orbit 34564

Creation date: 2022-02-18T12:03:53.163466
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/AS1A05_167T01_9000004940_34564cztM0_level2.evt modeM0/AS1A05_167T01_9000004940_34564cztM0_level2_quad_clean.evt
Size (bytes)467,786,88070,361,280
Size446.1 MB 67.1 MB
Events in quadrant A2,629,005441,747
Events in quadrant B3,316,645446,946
Events in quadrant C2,808,248442,861
Events in quadrant D5,040,180414,406

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112653
B0132612
C0114622
D0188002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5493120.218460%
B54931663.022028%
C5493300.546150%
D54933857.008920%

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 7286 5494 2 2 0.03% 0.04%
B 7286 5494 115 115 1.58% 2.09%
C 7286 5494 22 22 0.30% 0.40%
D 7286 5494 315 315 4.32% 5.73%

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 41684 311.56 656 645 131.7
A 9 143 20267 148.97 656 645 131.7
A 15 169 15096 109.71 656 645 131.7
B 5 172 628835 5120.27 645 629 122.7
B 0 190 46815 376.44 645 629 122.7
B 4 232 23834 189.13 645 629 122.7
C 15 214 231826 1575.98 632 638 146.7
C 0 10 87749 593.82 632 638 146.7
C 14 67 19577 129.1 632 638 146.7
D 8 195 1363288 9121.06 618 602 149.4
D 7 80 403931 2699.66 618 602 149.4
D 2 249 309279 2066.11 618 602 149.4

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