ASTROSAT CZTI

Data Quality Report

Orbit 13028

Creation date: 2024-06-27T16:35:15.647248
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_216T01_9000001916_13028cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13028cztM0_level2_quad_clean.evt
Size (bytes)544,101,12092,203,200
Size518.9 MB 87.9 MB
Events in quadrant A3,456,439617,644
Events in quadrant B6,383,615517,144
Events in quadrant C3,035,823623,673
Events in quadrant D3,172,889592,107

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141123
B0229952
C0130502
D0134472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63141432.264808%
B6314158325.071270%
C6314711.124485%
D6314671.061134%

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 7480 6316 41 41 0.55% 0.65%
B 7480 6316 1031 1031 13.78% 16.32%
C 7480 6316 2 2 0.03% 0.03%
D 7480 6316 2 2 0.03% 0.03%

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 15 223 177427 1132.72 778 761 156.0
A 12 189 125714 801.15 778 761 156.0
A 15 239 82161 521.91 778 761 156.0
B 4 239 3521669 28190.15 676 660 124.9
B 3 64 113800 905.83 676 660 124.9
B 0 230 26736 208.77 676 660 124.9
C 14 234 13480 71.77 772 776 177.0
C 12 4 5994 29.48 772 776 177.0
C 13 61 5609 27.3 772 776 177.0
D 8 195 163198 892.25 765 744 182.1
D 1 52 87013 473.82 765 744 182.1
D 2 234 23821 126.75 765 744 182.1

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