ASTROSAT CZTI

Data Quality Report

Orbit 58292

Creation date: 2026-07-07T08:14:36.767421
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_58292cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58292cztM0_level2_quad_clean.evt
Size (bytes)657,918,72078,114,240
Size627.4 MB 74.5 MB
Events in quadrant A4,147,451596,259
Events in quadrant B13,818,318186,824
Events in quadrant C2,805,577588,877
Events in quadrant D3,087,708549,624

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166261
B0454351
C0132071
D0136471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63601652.594340%
B6360485876.383648%
C6359130.204435%
D6360520.817610%

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 7415 6361 124 124 1.67% 1.95%
B 7414 6359 4466 4466 60.24% 70.23%
C 7414 6360 5 5 0.07% 0.08%
D 7415 6361 20 20 0.27% 0.31%

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 12 114 863453 5158.73 678 662 167.2
A 3 14 398356 2377.86 678 662 167.2
A 10 251 99585 591.47 678 662 167.2
B 10 128 11504206 128900.32 412 397 89.2
B 2 249 258007 2886.52 412 397 89.2
B 5 185 165171 1846.29 412 397 89.2
C 5 63 58365 315.57 667 662 182.9
C 12 249 39461 212.19 667 662 182.9
C 12 252 38122 204.87 667 662 182.9
D 11 129 122730 646.47 660 629 188.9
D 2 249 122517 645.35 660 629 188.9
D 12 128 84708 445.16 660 629 188.9

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