ASTROSAT CZTI

Data Quality Report

Orbit 32928

Creation date: 2024-06-27T20:43:33.552346
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/AS1C07_005T01_9000004748_32928cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32928cztM0_level2_quad_clean.evt
Size (bytes)530,994,240102,170,880
Size506.4 MB 97.4 MB
Events in quadrant A2,463,618711,219
Events in quadrant B3,349,344705,812
Events in quadrant C2,822,990695,607
Events in quadrant D7,082,841606,381

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108773
B0134312
C0119312
D0248482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A535170.130817%
B53512334.354326%
C5351751.401607%
D535181715.268174%

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 7114 5351 0 0 0.00% 0.00%
B 7114 5351 144 144 2.02% 2.69%
C 7114 5351 54 54 0.76% 1.01%
D 7114 5351 823 823 11.57% 15.38%

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 6 14436 108.8 629 618 127.0
A 13 254 10296 76.2 629 618 127.0
A 0 191 7528 54.41 629 618 127.0
B 5 172 600735 5089.02 624 609 117.9
B 0 197 136419 1151.66 624 609 117.9
B 0 219 47909 401.1 624 609 117.9
C 0 10 272275 1958.68 603 609 138.7
C 1 241 72335 517.14 603 609 138.7
C 14 67 33912 240.11 603 609 138.7
D 8 195 2685818 18167.19 565 550 147.8
D 12 227 1134462 7671.49 565 550 147.8
D 2 250 312263 2108.89 565 550 147.8

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