ASTROSAT CZTI

Data Quality Report

Orbit 53024

Creation date: 2025-07-18T13:14:14.617350
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_53024cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53024cztM0_level2_quad_clean.evt
Size (bytes)1,145,468,16073,874,880
Size1.1 GB 70.5 MB
Events in quadrant A17,068,6131,076
Events in quadrant B5,493,130690,138
Events in quadrant C10,821,686497,532
Events in quadrant D8,451,193537,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05567219
B0213950
C0372673
D0301320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7335732899.904567%
B73376959.472536%
C7337222630.339376%
D7337152120.730544%

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 7336 7334 6826 6826 93.05% 93.07%
B 7338 7338 568 568 7.74% 7.74%
C 7337 7337 2057 2057 28.04% 28.04%
D 7337 7337 1403 1403 19.12% 19.12%

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 15613637 497662.94 118 115 31.4
A 7 206 455014 14499.38 118 115 31.4
A 15 190 295799 9424.59 118 115 31.4
B 10 44 1681816 10856.79 728 703 154.8
B 2 249 419963 2707.62 728 703 154.8
B 10 191 81600 522.44 728 703 154.8
C 15 224 2755525 15483.8 649 643 177.9
C 1 241 2617951 14710.57 649 643 177.9
C 9 38 1678770 9431.91 649 643 177.9
D 12 17 3310752 16437.9 688 655 201.4
D 8 176 824577 4091.59 688 655 201.4
D 2 62 395638 1961.48 688 655 201.4

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