ASTROSAT CZTI

Data Quality Report

Orbit 23058

Creation date: 2024-06-27T18:49:55.222297
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/AS1A07_054T01_9000003406_23058cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23058cztM0_level2_quad_clean.evt
Size (bytes)365,690,88086,803,200
Size348.8 MB 82.8 MB
Events in quadrant A2,378,688571,519
Events in quadrant B2,545,440598,685
Events in quadrant C2,499,687574,450
Events in quadrant D3,321,223543,926

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102391
B0106601
C0105311
D0131841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A484580.165119%
B4845581.197110%
C4845651.341589%
D4845641.320949%

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 4845 4845 0 0 0.00% 0.00%
B 4845 4845 26 26 0.54% 0.54%
C 4845 4845 5 5 0.10% 0.10%
D 4845 4845 46 46 0.95% 0.95%

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 2 79 7977 60.3 613 602 122.3
A 13 254 7673 57.81 613 602 122.3
A 6 16 7298 54.75 613 602 122.3
B 4 216 74874 644.96 619 605 115.2
B 5 172 31328 266.8 619 605 115.2
B 12 111 13219 109.54 619 605 115.2
C 14 238 98296 704.48 601 607 138.7
C 0 207 36241 256.97 601 607 138.7
C 0 10 15800 109.56 601 607 138.7
D 1 52 892839 6287.96 595 579 141.9
D 13 172 62473 436.18 595 579 141.9
D 12 227 50889 354.55 595 579 141.9

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