ASTROSAT CZTI

Data Quality Report

Orbit 05079

Creation date: 2024-06-27T14:51:00.299092
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/AS1G05_103T01_9000000642_05079cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05079cztM0_level2_quad_clean.evt
Size (bytes)477,624,96056,911,680
Size455.5 MB 54.3 MB
Events in quadrant A3,122,295325,833
Events in quadrant B3,703,248328,271
Events in quadrant C3,023,779320,359
Events in quadrant D4,178,834299,625

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133182
B0149991
C0131291
D0168931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6435250.388500%
B6435330.512821%
C643580.124320%
D64351712.657343%

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 7740 6436 1 1 0.01% 0.02%
B 7740 6436 4 4 0.05% 0.06%
C 7740 6436 0 0 0.00% 0.00%
D 7740 6436 144 144 1.86% 2.24%

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 50 49768 305.28 795 779 160.5
A 13 251 15157 89.6 795 779 160.5
A 0 226 7945 44.66 795 779 160.5
B 8 3 505560 3289.91 807 792 153.4
B 15 204 32975 209.76 807 792 153.4
B 0 230 18744 117.01 807 792 153.4
C 9 54 10048 52.47 767 773 176.8
C 1 16 9363 48.6 767 773 176.8
C 14 67 7696 39.17 767 773 176.8
D 13 235 1001746 5437.8 754 733 184.1
D 10 15 83104 447.46 754 733 184.1
D 12 233 69885 375.65 754 733 184.1

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