ASTROSAT CZTI

Data Quality Report

Orbit 34533

Creation date: 2022-02-16T11:16:00.755988
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/AS1A06_005T01_9000004932_34533cztM0_level2.evt modeM0/AS1A06_005T01_9000004932_34533cztM0_level2_quad_clean.evt
Size (bytes)499,956,48068,097,600
Size476.8 MB 64.9 MB
Events in quadrant A2,609,952434,013
Events in quadrant B3,292,081432,174
Events in quadrant C2,874,334429,575
Events in quadrant D5,990,644379,765

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113333
B0133032
C0116592
D0216482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5518100.181225%
B55181853.352664%
C5518180.326205%
D551874213.446901%

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 7161 5519 3 3 0.04% 0.05%
B 7161 5519 127 127 1.77% 2.30%
C 7161 5519 9 9 0.13% 0.16%
D 7161 5519 623 623 8.70% 11.29%

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 9 143 50537 382.33 648 634 130.5
A 10 83 39437 297.29 648 634 130.5
A 13 6 12985 94.63 648 634 130.5
B 5 172 730358 5872.72 640 623 124.3
B 5 255 15792 122.08 640 623 124.3
B 12 111 15149 116.9 640 623 124.3
C 15 214 248825 1676.65 639 643 148.0
C 0 10 76439 512.06 639 643 148.0
C 14 67 49670 331.21 639 643 148.0
D 2 249 1351678 9098.48 605 586 148.5
D 8 195 807082 5431.08 605 586 148.5
D 12 17 584703 3933.54 605 586 148.5

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