ASTROSAT CZTI

Data Quality Report

Orbit 52060

Creation date: 2025-05-13T23:19:29.358182
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/AS1C09_011T06_9000006468_52060cztM0_level2.fits modeM0/AS1C09_011T06_9000006468_52060cztM0_level2_quad_clean.evt
Size (bytes)863,688,96070,027,200
Size823.7 MB 66.8 MB
Events in quadrant A3,688,198588,125
Events in quadrant B7,048,267526,506
Events in quadrant C5,321,917526,744
Events in quadrant D15,441,68054,315

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149981
B0251391
C0200681
D0500631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60821572.581388%
B6083133821.995726%
C608365510.767713%
D6083558291.763932%

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 7242 6083 110 110 1.52% 1.81%
B 7243 6083 974 974 13.45% 16.01%
C 7243 6084 549 549 7.58% 9.02%
D 7242 6082 5422 5422 74.87% 89.15%

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 8 43 307418 1942.93 636 621 157.9
A 4 249 225135 1421.84 636 621 157.9
A 4 3 158425 999.37 636 621 157.9
B 8 3 2120426 16884.73 590 571 125.5
B 0 172 1403747 11176.35 590 571 125.5
B 8 128 357385 2842.04 590 571 125.5
C 15 224 1739866 10462.94 603 598 166.2
C 9 38 280569 1684.23 603 598 166.2
C 13 3 229992 1379.97 603 598 166.2
D 15 94 8158819 104094.77 264 252 78.4
D 6 42 2278267 29065.09 264 252 78.4
D 12 17 1452848 18533.6 264 252 78.4

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