ASTROSAT CZTI

Data Quality Report

Orbit 32072

Creation date: 2024-06-27T20:35:35.694714
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/AS1A10_109T01_9000004678_32072cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32072cztM0_level2_quad_clean.evt
Size (bytes)783,541,44098,095,680
Size747.2 MB 93.6 MB
Events in quadrant A3,168,899692,094
Events in quadrant B8,383,698616,987
Events in quadrant C5,108,924587,992
Events in quadrant D6,627,555617,547

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135272
B0294462
C0196372
D0244522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6527270.413666%
B6527136320.882488%
C6527207631.806343%
D65272814.305194%

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 7592 6527 0 0 0.00% 0.00%
B 7592 6527 1035 1035 13.63% 15.86%
C 7592 6527 167 167 2.20% 2.56%
D 7592 6527 186 186 2.45% 2.85%

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 13 254 12535 71.11 820 805 164.9
A 3 137 7969 43.43 820 805 164.9
A 0 226 6880 36.83 820 805 164.9
B 10 245 3414708 23611.72 759 741 144.6
B 6 159 1675553 11583.36 759 741 144.6
B 5 172 134533 925.33 759 741 144.6
C 3 233 989787 6233.13 673 680 158.7
C 14 254 639390 4025.01 673 680 158.7
C 14 238 576880 3631.09 673 680 158.7
D 8 195 2741843 14715.07 778 759 186.3
D 12 227 463438 2483.82 778 759 186.3
D 12 218 256292 1371.79 778 759 186.3

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