ASTROSAT CZTI

Data Quality Report

Orbit 53084

Creation date: 2025-07-22T01:20:42.228135
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_011T07_9000006488_53084cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53084cztM0_level2_quad_clean.evt
Size (bytes)1,081,673,28069,840,000
Size1.0 GB 66.6 MB
Events in quadrant A15,755,700115,833
Events in quadrant B8,082,766524,505
Events in quadrant C9,997,686451,101
Events in quadrant D5,678,843548,338

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0513930
B0288060
C0344861
D0216680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6805582285.554739%
B6805188727.729611%
C6805212131.168259%
D68055578.185158%

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 6804 6804 5248 5248 77.13% 77.13%
B 6805 6805 1348 1348 19.81% 19.81%
C 6805 6805 1682 1682 24.72% 24.72%
D 6805 6805 430 430 6.32% 6.32%

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 9 191 13442305 148029.27 354 344 90.8
A 7 206 726792 7999.99 354 344 90.8
A 0 8 47329 517.42 354 344 90.8
B 2 249 4213701 31711.98 622 602 132.9
B 4 81 320616 2408.74 622 602 132.9
B 10 254 271310 2037.62 622 602 132.9
C 9 38 3661290 21388.59 618 612 171.2
C 15 224 2127351 12426.1 618 612 171.2
C 15 147 552341 3223.64 618 612 171.2
D 12 17 1492627 7664.06 679 649 194.7
D 3 12 227533 1165.47 679 649 194.7
D 2 153 140738 719.62 679 649 194.7

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