ASTROSAT CZTI

Data Quality Report

Orbit 58354

Creation date: 2026-07-11T13:11:52.659644
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_044T03_9000006588_58354cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58354cztM0_level2_quad_clean.evt
Size (bytes)454,919,04096,194,880
Size433.8 MB 91.7 MB
Events in quadrant A3,244,757643,576
Events in quadrant B4,619,985659,820
Events in quadrant C5,043,214557,872
Events in quadrant D3,415,279589,256

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143522
B0180972
C0196252
D0149332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66321702.563329%
B66325958.971653%
C663294314.218938%
D66321031.553076%

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 7677 6633 27 27 0.35% 0.41%
B 7677 6632 262 262 3.41% 3.95%
C 7676 6632 415 415 5.41% 6.26%
D 7677 6633 13 13 0.17% 0.20%

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 12 80 92133 492.89 755 735 185.4
A 13 248 46078 244.52 755 735 185.4
A 8 230 44950 238.44 755 735 185.4
B 6 255 810941 5167.73 731 704 156.8
B 5 185 258774 1645.98 731 704 156.8
B 10 128 228166 1450.76 731 704 156.8
C 15 148 1100738 5885.88 681 675 186.9
C 4 5 1078837 5768.7 681 675 186.9
C 6 13 53960 285.1 681 675 186.9
D 11 129 241345 1170.65 729 697 205.6
D 11 176 102561 495.52 729 697 205.6
D 1 3 94769 457.62 729 697 205.6

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