ASTROSAT CZTI

Data Quality Report

Orbit 09930

Creation date: 2024-06-27T15:52:31.959613
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/AS1A02_029T01_9000001416_09930cztM0_level2.evt modeM0/AS1A02_029T01_9000001416_09930cztM0_level2_quad_clean.evt
Size (bytes)433,071,36077,806,080
Size413.0 MB 74.2 MB
Events in quadrant A3,340,394488,030
Events in quadrant B2,943,410508,965
Events in quadrant C2,696,316500,254
Events in quadrant D3,744,311456,744

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0121
D0121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01246
B01246
C01248
D01248

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014522793
B013148656
C012462587
D015783895

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5739901.568217%
B5748791.374391%
C5764260.451076%
D57261682.933985%

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 7338 5997 5 5 0.07% 0.08%
B 7338 5997 2 2 0.03% 0.03%
C 7338 6012 1 1 0.01% 0.02%
D 7338 5985 126 126 1.72% 2.11%

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 15 239 554071 3872.83 698 683 142.9
A 14 111 90478 628.42 698 683 142.9
A 0 226 6549 41.05 698 683 142.9
B 0 219 45654 329.04 713 696 136.6
B 0 214 42107 303.08 713 696 136.6
B 0 187 24406 173.53 713 696 136.6
C 12 4 8241 47.15 687 692 160.1
C 13 61 5186 28.07 687 692 160.1
C 8 128 3818 19.53 687 692 160.1
D 2 16 369975 2183.41 661 643 169.2
D 8 195 312021 1840.8 661 643 169.2
D 1 52 195679 1153.01 661 643 169.2

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