ASTROSAT CZTI

Data Quality Report

Orbit 44036

Creation date: 2024-06-27T22:58:33.915536
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_025T01_9000005936_44036cztM0_level2.fits modeM0/AS1A13_025T01_9000005936_44036cztM0_level2_quad_clean.evt
Size (bytes)502,269,120108,858,240
Size479.0 MB 103.8 MB
Events in quadrant A4,995,858719,029
Events in quadrant B3,347,216757,873
Events in quadrant C3,643,678722,718
Events in quadrant D6,088,887632,183

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192882
B0144982
C0153782
D0225992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66573094.641731%
B6656681.021635%
C66561211.817909%
D66565848.774038%

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 7692 6658 115 115 1.50% 1.73%
B 7691 6657 7 7 0.09% 0.11%
C 7691 6657 62 62 0.81% 0.93%
D 7691 6657 474 474 6.16% 7.12%

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 1352320 8740.84 748 730 154.6
A 14 238 346470 2235.93 748 730 154.6
A 15 223 260448 1679.62 748 730 154.6
B 0 200 114388 760.68 755 731 149.4
B 0 213 76613 507.86 755 731 149.4
B 3 112 41446 272.5 755 731 149.4
C 14 254 251238 1427.46 744 748 175.5
C 1 241 242020 1374.92 744 748 175.5
C 3 233 126476 716.48 744 748 175.5
D 1 52 1987104 10737.97 729 706 185.0
D 5 235 540053 2915.57 729 706 185.0
D 4 222 177336 954.81 729 706 185.0

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