ASTROSAT CZTI

Data Quality Report

Orbit 33298

Creation date: 2024-06-27T20:47:13.358259
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/AS1T04_072T01_9000004780_33298cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33298cztM0_level2_quad_clean.evt
Size (bytes)590,071,68074,770,560
Size562.7 MB 71.3 MB
Events in quadrant A2,735,062495,171
Events in quadrant B3,622,725478,207
Events in quadrant C3,502,279474,579
Events in quadrant D7,611,435403,810

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119092
B0144701
C0139551
D0267861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A590060.101695%
B59002103.559322%
C59001071.813559%
D5900116319.711864%

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 7213 5901 1 1 0.01% 0.02%
B 7213 5901 147 147 2.04% 2.49%
C 7213 5901 92 92 1.28% 1.56%
D 7213 5901 979 979 13.57% 16.59%

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 15 47 58893 419.29 689 674 138.8
A 13 254 8750 58.16 689 674 138.8
A 15 169 8087 53.39 689 674 138.8
B 5 172 718795 5583.07 676 656 128.6
B 0 219 83171 641.5 676 656 128.6
B 4 170 26846 203.61 676 656 128.6
C 1 23 334987 2184.61 664 670 153.0
C 15 214 272299 1774.97 664 670 153.0
C 0 10 173650 1130.35 664 670 153.0
D 8 195 2245940 14160.53 621 607 158.6
D 12 17 1557146 9816.54 621 607 158.6
D 2 249 553702 3488.18 621 607 158.6

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