ASTROSAT CZTI

Data Quality Report

Orbit 38105

Creation date: 2024-06-27T21:48:27.402089
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/AS1A11_047T09_9000005362_38105cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38105cztM0_level2_quad_clean.evt
Size (bytes)421,588,80096,583,680
Size402.1 MB 92.1 MB
Events in quadrant A3,259,048658,484
Events in quadrant B2,933,557670,398
Events in quadrant C3,423,205626,828
Events in quadrant D5,535,235559,899

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130933
B0125072
C0136332
D0203192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5852360.615174%
B5852440.751880%
C58521642.802461%
D58524647.928913%

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 7165 5853 26 26 0.36% 0.44%
B 7165 5853 33 33 0.46% 0.56%
C 7165 5853 148 148 2.07% 2.53%
D 7165 5853 534 534 7.45% 9.12%

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 397613 2920.94 667 655 135.9
A 13 248 103738 758.52 667 655 135.9
A 12 16 76007 554.46 667 655 135.9
B 0 229 145762 1109.27 664 645 130.8
B 5 172 84203 638.71 664 645 130.8
B 15 85 23877 177.58 664 645 130.8
C 1 23 494908 3250.4 644 649 152.1
C 15 214 244476 1603.48 644 649 152.1
C 5 250 70712 460.76 644 649 152.1
D 1 20 1909055 12266.44 635 617 155.6
D 13 138 614003 3942.52 635 617 155.6
D 12 235 145301 929.95 635 617 155.6

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