ASTROSAT CZTI

Data Quality Report

Orbit 53578

Creation date: 2025-08-24T04:39:07.039049
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_53578cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53578cztM0_level2_quad_clean.evt
Size (bytes)1,270,437,12070,695,360
Size1.2 GB 67.4 MB
Events in quadrant A10,474,154433,742
Events in quadrant B10,199,360559,547
Events in quadrant C11,231,379449,173
Events in quadrant D14,549,138178,945

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0363000
B0355062
C0385220
D0483440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7445311441.826729%
B7444218929.406233%
C7444281137.761956%
D7444547573.549167%

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 7444 7443 2096 2096 28.16% 28.16%
B 7444 7444 1759 1759 23.63% 23.63%
C 7444 7444 2231 2231 29.97% 29.97%
D 7443 7443 4175 4175 56.09% 56.09%

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 5445787 35075.78 621 604 155.2
A 3 62 1612881 10385.67 621 604 155.2
A 4 239 457254 2941.56 621 604 155.2
B 5 172 4878314 32011.74 710 684 152.4
B 4 206 896443 5878.84 710 684 152.4
B 2 249 408466 2676.26 710 684 152.4
C 15 224 4756312 27483.12 623 617 173.0
C 1 241 1149095 6637.04 623 617 173.0
C 4 5 756773 4369.82 623 617 173.0
D 8 176 11619636 123731.52 324 309 93.9
D 3 12 957040 10188.01 324 309 93.9
D 7 70 214653 2282.5 324 309 93.9

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