ASTROSAT CZTI

Data Quality Report

Orbit 10886

Creation date: 2024-06-27T16:05:12.478764
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/AS1A04_055T01_9000001574_10886cztM0_level2.evt modeM0/AS1A04_055T01_9000001574_10886cztM0_level2_quad_clean.evt
Size (bytes)576,371,52092,615,040
Size549.7 MB 88.3 MB
Events in quadrant A4,601,200590,457
Events in quadrant B3,957,292607,589
Events in quadrant C2,830,715611,539
Events in quadrant D5,636,091551,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179542
B0158671
C0130771
D0210561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63433826.022387%
B63432724.288192%
C6343270.425666%
D634374211.697935%

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 7393 6344 206 206 2.79% 3.25%
B 7393 6344 151 151 2.04% 2.38%
C 7393 6344 4 4 0.05% 0.06%
D 7393 6344 547 547 7.40% 8.62%

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 8 5 1346665 8984.42 737 722 149.8
A 15 223 222467 1480.19 737 722 149.8
A 15 239 84216 557.34 737 722 149.8
B 4 239 886101 6247.12 743 727 141.7
B 0 219 81086 567.01 743 727 141.7
B 15 85 24142 165.21 743 727 141.7
C 0 207 30439 180.08 716 718 165.0
C 13 61 5386 28.28 716 718 165.0
C 8 222 3362 16.02 716 718 165.0
D 1 52 2280693 13624.17 683 660 167.4
D 8 195 290974 1734.75 683 660 167.4
D 13 104 141331 840.57 683 660 167.4

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