ASTROSAT CZTI

Data Quality Report

Orbit 32289

Creation date: 2024-06-27T20:38:30.315901
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/AS1A09_131T01_9000004696_32289cztM0_level2.evt modeM0/AS1A09_131T01_9000004696_32289cztM0_level2_quad_clean.evt
Size (bytes)665,026,56092,724,480
Size634.2 MB 88.4 MB
Events in quadrant A3,472,031605,945
Events in quadrant B5,433,977602,375
Events in quadrant C3,604,086597,101
Events in quadrant D7,201,530558,962

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144132
B0204381
C0146991
D0259161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63581221.918842%
B63581732.720981%
C63581882.956905%
D635865210.254797%

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 7313 6359 43 43 0.59% 0.68%
B 7313 6359 40 40 0.55% 0.63%
C 7313 6359 19 19 0.26% 0.30%
D 7313 6359 486 486 6.65% 7.64%

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 0 6 431804 2751.97 777 762 156.6
A 0 226 33762 210.69 777 762 156.6
A 13 254 12309 73.72 777 762 156.6
B 6 159 1876053 12777.74 767 745 146.8
B 0 190 150113 1017.74 767 745 146.8
B 5 172 132423 897.21 767 745 146.8
C 3 233 257725 1463.47 748 751 175.6
C 0 10 156504 887.02 748 751 175.6
C 14 238 139914 792.54 748 751 175.6
D 8 195 2822931 16205.9 735 714 174.1
D 12 233 619365 3552.45 735 714 174.1
D 13 249 476182 2730.26 735 714 174.1

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