ASTROSAT CZTI

Data Quality Report

Orbit 53403

Creation date: 2025-08-12T09:56:17.091110
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_011T09_9000006494_53403cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53403cztM0_level2_quad_clean.evt
Size (bytes)933,589,440106,715,520
Size890.3 MB 101.8 MB
Events in quadrant A8,434,739638,914
Events in quadrant B7,111,934770,812
Events in quadrant C9,514,402606,577
Events in quadrant D8,863,927644,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0308170
B0267730
C0339770
D0321320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8205168420.524071%
B820584910.347349%
C8206172721.045576%
D820685210.382647%

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 8205 8205 1233 1233 15.03% 15.03%
B 8205 8205 528 528 6.44% 6.44%
C 8206 8206 1533 1533 18.68% 18.68%
D 8206 8206 755 755 9.20% 9.20%

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 7 190 1876442 9756.68 778 759 192.2
A 7 191 1703019 8854.59 778 759 192.2
A 0 8 561937 2919.06 778 759 192.2
B 4 171 1802632 10116.09 833 804 178.1
B 4 206 771586 4327.44 833 804 178.1
B 2 249 448583 2513.99 833 804 178.1
C 15 224 2811746 13518.36 757 750 207.9
C 1 241 2481702 11931.15 757 750 207.9
C 15 158 512642 2461.74 757 750 207.9
D 0 18 3396600 15175.16 795 760 223.8
D 12 16 1244166 5556.47 795 760 223.8
D 2 153 317159 1413.91 795 760 223.8

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