ASTROSAT CZTI

Data Quality Report

Orbit 53563

Creation date: 2025-08-23T12:43:58.752589
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_53563cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53563cztM0_level2_quad_clean.evt
Size (bytes)1,080,889,92083,062,080
Size1.0 GB 79.2 MB
Events in quadrant A9,727,897528,896
Events in quadrant B7,308,838678,526
Events in quadrant C8,946,535554,176
Events in quadrant D13,442,715226,070

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340990
B0270100
C0318820
D0451561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7576224229.593453%
B7577108014.253662%
C7577169622.383529%
D7576501066.129884%

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 7576 7576 1769 1769 23.35% 23.35%
B 7577 7577 895 895 11.81% 11.81%
C 7577 7577 1480 1480 19.53% 19.53%
D 7576 7575 3497 3497 46.16% 46.17%

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 63 3407930 19446.3 695 678 175.2
A 3 62 1865297 10641.99 695 678 175.2
A 4 239 616581 3515.16 695 678 175.2
B 2 249 2676048 16559.48 755 730 161.6
B 10 254 1091845 6753.7 755 730 161.6
B 7 0 218402 1347.33 755 730 161.6
C 15 224 3710468 18650.04 709 703 198.9
C 7 64 1299228 6528.05 709 703 198.9
C 7 80 524712 2634.34 709 703 198.9
D 8 176 10380556 94420.67 374 357 109.9
D 2 172 402954 3662.11 374 357 109.9
D 4 238 337313 3065.03 374 357 109.9

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