ASTROSAT CZTI

Data Quality Report

Orbit 56463

Creation date: 2026-03-06T07:34:25.978817
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/AS1A14_060T01_9000006556_56463cztM0_level2.fits modeM0/AS1A14_060T01_9000006556_56463cztM0_level2_quad_clean.evt
Size (bytes)676,612,80088,894,080
Size645.3 MB 84.8 MB
Events in quadrant A5,169,214605,674
Events in quadrant B8,727,894504,687
Events in quadrant C3,225,158634,555
Events in quadrant D7,406,989482,682

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200392
B0306026
C0144492
D0264382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A666168910.343792%
B6660215732.387387%
C6660630.945946%
D6660135620.360360%

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 7846 6662 670 670 8.54% 10.06%
B 7845 6661 1683 1683 21.45% 25.27%
C 7845 6661 29 29 0.37% 0.44%
D 7845 6661 1257 1257 16.02% 18.87%

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 3 1029944 5839.79 707 689 176.2
A 4 95 817268 4633.11 707 689 176.2
A 4 206 313827 1776.68 707 689 176.2
B 5 172 5944600 43653.74 632 609 136.2
B 0 63 75993 553.63 632 609 136.2
B 1 159 47244 342.5 632 609 136.2
C 12 254 103945 522.8 717 713 197.5
C 15 230 91655 460.56 717 713 197.5
C 12 252 91071 457.6 717 713 197.5
D 12 4 3596656 19994.04 629 600 179.9
D 8 129 471456 2617.96 629 600 179.9
D 2 249 290443 1611.52 629 600 179.9

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