ASTROSAT CZTI

Data Quality Report

Orbit 58805

Creation date: 2026-08-10T21:07:38.288659
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_106T01_9000006596_58805cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58805cztM0_level2_quad_clean.evt
Size (bytes)615,674,88080,046,720
Size587.2 MB 76.3 MB
Events in quadrant A3,786,779586,752
Events in quadrant B3,153,154622,668
Events in quadrant C3,623,075553,694
Events in quadrant D11,767,484246,689

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153531
B0134111
C0149063
D0389651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59181903.210544%
B59181632.754309%
C59172183.684299%
D5918350359.192295%

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 6938 5918 101 101 1.46% 1.71%
B 6938 5918 74 74 1.07% 1.25%
C 6937 5917 161 161 2.32% 2.72%
D 6938 5918 3510 3510 50.59% 59.31%

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 7 64 725248 4401.26 660 642 164.6
A 15 233 229933 1392.71 660 642 164.6
A 13 248 77845 468.93 660 642 164.6
B 5 172 116177 830.46 650 628 139.1
B 8 128 63747 453.64 650 628 139.1
B 4 171 60794 432.42 650 628 139.1
C 13 3 530280 2999.33 639 632 176.6
C 15 198 337974 1910.32 639 632 176.6
C 12 252 70467 395.46 639 632 176.6
D 12 110 7194401 53118.61 474 454 135.4
D 11 129 1673118 12350.6 474 454 135.4
D 2 249 664663 4904.38 474 454 135.4

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

TCT plots

Parameter TCT0 TCT_healed
Tct