ASTROSAT CZTI

Data Quality Report

Orbit 42559

Creation date: 2024-06-27T22:41:36.833546
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/AS1C07_001T10_9000005814_42559cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42559cztM0_level2_quad_clean.evt
Size (bytes)296,375,04090,495,360
Size282.6 MB 86.3 MB
Events in quadrant A2,816,187604,338
Events in quadrant B2,455,290618,768
Events in quadrant C2,436,971594,475
Events in quadrant D2,844,129547,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116071
B0111681
C0107881
D0124211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A536390.167817%
B536350.093231%
C536320.037293%
D5363741.379825%

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 7246 5364 2 2 0.03% 0.04%
B 7246 5364 1 1 0.01% 0.02%
C 7246 5364 0 0 0.00% 0.00%
D 7246 5364 67 67 0.92% 1.25%

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 541182 4529.18 582 570 119.4
A 2 79 11793 94.02 582 570 119.4
A 13 254 7826 60.79 582 570 119.4
B 0 245 150602 1364.01 576 560 110.0
B 15 32 14203 124.03 576 560 110.0
B 12 111 13976 121.96 576 560 110.0
C 15 214 223460 1704.89 563 566 130.7
C 14 254 11553 84.04 563 566 130.7
C 9 54 6683 46.79 563 566 130.7
D 2 249 134467 983.65 562 547 136.1
D 13 249 128385 938.98 562 547 136.1
D 1 52 116119 848.89 562 547 136.1

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