ASTROSAT CZTI

Data Quality Report

Orbit 53592

Creation date: 2025-08-25T03:36:18.832150
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_004T05_9000006502_53592cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53592cztM0_level2_quad_clean.evt
Size (bytes)1,311,678,72064,287,360
Size1.2 GB 61.3 MB
Events in quadrant A13,611,468353,183
Events in quadrant B8,908,142586,480
Events in quadrant C10,356,245358,071
Events in quadrant D15,111,772136,058

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0454820
B0315940
C0358980
D0498450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7352401854.651795%
B7352183925.013602%
C7352369050.190424%
D7352589080.114255%

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 7352 7352 3299 3299 44.87% 44.87%
B 7352 7352 1244 1244 16.92% 16.92%
C 7352 7352 1974 1974 26.85% 26.85%
D 7351 7351 4512 4512 61.38% 61.38%

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 3 62 9921131 64657.79 613 596 153.4
A 15 174 311765 2028.06 613 596 153.4
A 3 63 267519 1739.69 613 596 153.4
B 5 185 2352334 15517.45 709 684 151.5
B 5 250 1358472 8959.42 709 684 151.5
B 5 172 920255 6067.83 709 684 151.5
C 15 224 6512784 47162.28 496 491 138.1
C 15 164 816080 5906.53 496 491 138.1
C 4 5 344959 2494.65 496 491 138.1
D 8 176 13438950 164744.47 278 265 81.6
D 2 153 64280 784.76 278 265 81.6
D 2 249 60334 736.38 278 265 81.6

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