ASTROSAT CZTI

Data Quality Report

Orbit 38029

Creation date: 2024-06-27T21:47:32.099728
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_082T01_9000005356_38029cztM0_level2.fits modeM0/AS1A11_082T01_9000005356_38029cztM0_level2_quad_clean.evt
Size (bytes)344,076,48092,473,920
Size328.1 MB 88.2 MB
Events in quadrant A2,778,342627,424
Events in quadrant B3,221,222636,341
Events in quadrant C2,883,618625,927
Events in quadrant D3,469,824565,043

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110413
B0125662
C0112502
D0133792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4929220.446338%
B49291783.611280%
C49291022.069385%
D49291623.286671%

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 7052 4930 12 12 0.17% 0.24%
B 7052 4930 124 124 1.76% 2.52%
C 7052 4930 82 82 1.16% 1.66%
D 7052 4930 148 148 2.10% 3.00%

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 355305 2951.76 597 587 120.2
A 12 16 48732 400.64 597 587 120.2
A 15 174 22328 180.92 597 587 120.2
B 4 171 357802 3234.84 588 575 110.4
B 5 172 240728 2174.69 588 575 110.4
B 5 255 79311 712.99 588 575 110.4
C 1 23 284833 2118.8 582 588 134.2
C 15 214 213817 1589.44 582 588 134.2
C 14 254 35736 262.0 582 588 134.2
D 12 227 329213 2341.06 580 566 140.4
D 2 250 242768 1725.28 580 566 140.4
D 13 200 172735 1226.42 580 566 140.4

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