ASTROSAT CZTI

Data Quality Report

Orbit 42413

Creation date: 2024-06-27T22:39:57.591744
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/AS1T05_138T01_9000005802_42413cztM0_level2.fits modeM0/AS1T05_138T01_9000005802_42413cztM0_level2_quad_clean.evt
Size (bytes)318,841,92086,837,760
Size304.1 MB 82.8 MB
Events in quadrant A2,795,995581,002
Events in quadrant B2,439,729597,834
Events in quadrant C2,518,778568,833
Events in quadrant D3,635,277511,382

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113962
B0109912
C0108912
D0144652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A529580.151086%
B5295310.585458%
C5295130.245515%
D52952174.098206%

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 7027 5296 2 2 0.03% 0.04%
B 7027 5296 16 16 0.23% 0.30%
C 7027 5296 8 8 0.11% 0.15%
D 7027 5296 250 250 3.56% 4.72%

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 543868 4554.86 577 564 119.3
A 13 248 9274 73.02 577 564 119.3
A 13 254 8058 62.82 577 564 119.3
B 3 112 54864 488.62 573 556 111.1
B 0 186 45022 400.07 573 556 111.1
B 5 172 27756 244.73 573 556 111.1
C 15 214 222055 1700.31 562 564 130.3
C 14 254 65466 498.23 562 564 130.3
C 4 254 32016 241.45 562 564 130.3
D 2 16 850782 6228.35 557 541 136.5
D 1 52 188618 1377.74 557 541 136.5
D 12 33 144723 1056.19 557 541 136.5

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