ASTROSAT CZTI

Data Quality Report

Orbit 54314

Creation date: 2025-10-12T17:08:25.987841
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_126T15_9000006516_54314cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54314cztM0_level2_quad_clean.evt
Size (bytes)550,748,16086,451,840
Size525.2 MB 82.4 MB
Events in quadrant A4,649,523559,472
Events in quadrant B2,772,579673,752
Events in quadrant C3,575,994575,985
Events in quadrant D8,892,182362,846

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183941
B0131101
C0153371
D0308382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A638086513.557994%
B6381641.002978%
C63812233.494750%
D6380242638.025078%

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 7425 6381 569 569 7.66% 8.92%
B 7426 6382 6 6 0.08% 0.09%
C 7426 6382 187 187 2.52% 2.93%
D 7425 6381 1890 1890 25.45% 29.62%

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 29 1583255 10288.72 624 609 153.8
A 0 8 495141 3214.93 624 609 153.8
A 4 3 32243 205.65 624 609 153.8
B 0 213 52096 359.82 669 644 143.0
B 10 247 32046 219.6 669 644 143.0
B 12 111 16824 113.15 669 644 143.0
C 1 241 499067 2812.45 641 632 177.2
C 14 254 178640 1004.42 641 632 177.2
C 1 16 156187 877.73 641 632 177.2
D 8 176 5905833 40035.83 514 490 147.5
D 3 12 403851 2734.62 514 490 147.5
D 14 52 319497 2162.74 514 490 147.5

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