ASTROSAT CZTI

Data Quality Report

Orbit 44265

Creation date: 2024-06-27T23:01:10.143501
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/AS1A13_080T05_9000005980_44265cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44265cztM0_level2_quad_clean.evt
Size (bytes)487,759,68076,069,440
Size465.2 MB 72.5 MB
Events in quadrant A8,142,238380,034
Events in quadrant B2,915,908562,060
Events in quadrant C2,478,319529,232
Events in quadrant D4,109,662463,251

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280320
B0122050
C0113830
D0158570

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5262187535.632839%
B5262561.064234%
C5263751.425043%
D52633676.973209%

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 5262 5262 1638 1638 31.13% 31.13%
B 5262 5262 32 32 0.61% 0.61%
C 5263 5263 64 64 1.22% 1.22%
D 5263 5263 344 344 6.54% 6.54%

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 5119284 52291.74 465 453 97.9
A 10 83 1008355 10296.29 465 453 97.9
A 7 3 105876 1076.96 465 453 97.9
B 0 219 88656 808.91 554 538 108.9
B 5 172 87734 800.45 554 538 108.9
B 0 190 87036 794.04 554 538 108.9
C 15 158 187844 1459.9 539 540 128.3
C 14 254 109785 851.48 539 540 128.3
C 5 250 50297 387.82 539 540 128.3
D 5 235 503125 3753.65 526 509 133.9
D 1 20 301198 2245.61 526 509 133.9
D 12 233 238383 1776.5 526 509 133.9

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