ASTROSAT CZTI

Data Quality Report

Orbit 43256

Creation date: 2024-06-27T22:49:50.313158
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/AS1A06_006T01_9000005860_43256cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43256cztM0_level2_quad_clean.evt
Size (bytes)305,009,28088,784,640
Size290.9 MB 84.7 MB
Events in quadrant A2,990,020590,847
Events in quadrant B2,316,432624,166
Events in quadrant C2,515,554592,946
Events in quadrant D3,074,649526,391

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119212
B0101922
C0103272
D0125052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5050170.336634%
B505040.079208%
C505040.079208%
D50502013.980198%

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 7082 5051 6 6 0.08% 0.12%
B 7082 5051 0 0 0.00% 0.00%
C 7082 5051 1 1 0.01% 0.02%
D 7082 5051 154 154 2.17% 3.05%

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 564441 4740.65 578 567 118.9
A 12 189 132027 1105.22 578 567 118.9
A 15 237 30328 250.21 578 567 118.9
B 5 255 44044 389.45 575 560 111.7
B 12 111 14042 120.75 575 560 111.7
B 11 111 12807 109.69 575 560 111.7
C 15 214 213973 1582.35 573 578 134.9
C 0 207 22875 165.33 573 578 134.9
C 0 239 14336 102.02 573 578 134.9
D 1 52 237618 1715.18 563 548 138.2
D 13 249 231314 1669.57 563 548 138.2
D 2 249 202118 1458.34 563 548 138.2

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