ASTROSAT CZTI

Data Quality Report

Orbit 29848

Creation date: 2024-06-27T20:08:17.338999
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/AS1T03_291T01_9000004278_29848cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29848cztM0_level2_quad_clean.evt
Size (bytes)567,046,08080,686,080
Size540.8 MB 76.9 MB
Events in quadrant A3,602,495521,070
Events in quadrant B5,503,760516,594
Events in quadrant C3,803,737482,612
Events in quadrant D3,830,940477,537

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147432
B0203424
C0155372
D0155842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63831282.005327%
B63822283.572548%
C63821892.961454%
D63821402.193670%

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 7678 6384 0 0 0.00% 0.00%
B 7677 6383 2 2 0.03% 0.03%
C 7677 6383 1 1 0.01% 0.02%
D 7677 6383 30 30 0.39% 0.47%

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 13 254 12485 63.8 930 914 181.4
A 14 238 11312 57.33 930 914 181.4
A 3 137 7957 38.83 930 914 181.4
B 6 159 1874156 11220.9 914 897 166.9
B 0 190 29528 171.5 914 897 166.9
B 12 111 18961 108.2 914 897 166.9
C 3 233 277619 1397.33 861 866 198.1
C 14 238 145032 727.9 861 866 198.1
C 2 114 15828 75.54 861 866 198.1
D 8 195 224306 1111.6 874 854 201.0
D 13 153 98179 484.16 874 854 201.0
D 2 250 80215 394.8 874 854 201.0

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