ASTROSAT CZTI

Data Quality Report

Orbit 45936

Creation date: 2024-06-27T23:17:54.343075
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/AS1A13_033T03_9000006144_45936cztM0_level2.fits modeM0/AS1A13_033T03_9000006144_45936cztM0_level2_quad_clean.evt
Size (bytes)526,409,280106,159,680
Size502.0 MB 101.2 MB
Events in quadrant A5,676,548706,799
Events in quadrant B5,364,505704,918
Events in quadrant C3,248,334721,487
Events in quadrant D4,700,424634,181

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213212
B0203212
C0141262
D0184572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64012073.233870%
B64015378.389314%
C6401911.421653%
D64013435.358538%

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 7526 6401 42 42 0.56% 0.66%
B 7526 6401 263 263 3.49% 4.11%
C 7526 6402 54 54 0.72% 0.84%
D 7526 6401 280 280 3.72% 4.37%

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 10 83 2857765 18852.66 725 709 151.5
A 0 247 12003 74.52 725 709 151.5
A 3 137 8482 51.29 725 709 151.5
B 3 112 2436742 17366.23 716 695 140.3
B 5 172 31546 219.93 716 695 140.3
B 4 171 17955 123.04 716 695 140.3
C 14 254 190629 1109.46 726 732 171.2
C 12 250 166641 969.31 726 732 171.2
C 2 14 29940 170.64 726 732 171.2
D 1 52 672689 3749.74 703 681 179.2
D 11 241 600240 3345.48 703 681 179.2
D 2 37 304587 1695.77 703 681 179.2

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