ASTROSAT CZTI

Data Quality Report

Orbit 13710

Creation date: 2024-06-27T16:45:04.249772
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/AS1T02_041T01_9000002032_13710cztM0_level2.evt modeM0/AS1T02_041T01_9000002032_13710cztM0_level2_quad_clean.evt
Size (bytes)453,078,720131,169,600
Size432.1 MB 125.1 MB
Events in quadrant A3,248,564863,937
Events in quadrant B3,415,110886,295
Events in quadrant C3,183,454890,773
Events in quadrant D3,406,487852,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140642
B0146391
C0140451
D0148851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68781351.962780%
B68781582.297179%
C6878691.003199%
D68781051.526607%

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 7439 6880 0 0 0.00% 0.00%
B 7439 6880 24 24 0.32% 0.35%
C 7439 6880 0 0 0.00% 0.00%
D 7439 6880 22 22 0.30% 0.32%

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 15 222 129799 801.55 802 785 161.0
A 1 162 22279 133.54 802 785 161.0
A 1 178 7191 39.8 802 785 161.0
B 8 250 129342 848.28 802 782 151.6
B 0 214 55469 360.84 802 782 151.6
B 0 219 33750 217.53 802 782 151.6
C 3 233 107326 601.16 783 786 177.2
C 14 220 16872 90.77 783 786 177.2
C 13 61 5793 28.25 783 786 177.2
D 2 136 171495 840.14 775 760 203.2
D 5 222 115400 564.11 775 760 203.2
D 13 122 79472 387.32 775 760 203.2

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