ASTROSAT CZTI

Data Quality Report

Orbit 14485

Creation date: 2024-06-27T16:55:51.367764
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/AS1G08_034T02_9000002136_14485cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14485cztM0_level2_quad_clean.evt
Size (bytes)476,562,24085,020,480
Size454.5 MB 81.1 MB
Events in quadrant A3,307,894539,748
Events in quadrant B3,519,987538,494
Events in quadrant C3,594,062530,686
Events in quadrant D3,581,764524,682

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140623
B0148222
C0149212
D0150412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6322681.075609%
B6322941.486871%
C6322490.775071%
D63221171.850680%

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 7508 6324 7 7 0.09% 0.11%
B 7508 6324 24 24 0.32% 0.38%
C 7508 6324 4 4 0.05% 0.06%
D 7508 6324 43 43 0.57% 0.68%

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 12 189 72676 434.05 818 802 165.6
A 15 69 40007 236.76 818 802 165.6
A 8 15 25595 149.72 818 802 165.6
B 15 222 88719 575.51 815 796 152.8
B 3 209 66908 432.74 815 796 152.8
B 0 189 50032 322.28 815 796 152.8
C 3 233 309735 1687.44 799 807 183.1
C 0 207 163704 889.78 799 807 183.1
C 13 61 5720 26.84 799 807 183.1
D 2 120 379818 1865.22 797 778 203.2
D 10 199 66180 321.84 797 778 203.2
D 12 110 61151 297.09 797 778 203.2

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