ASTROSAT CZTI

Data Quality Report

Orbit 04571

Creation date: 2024-06-27T14:43:55.693911
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/AS1G05_233T10_9000000570_04571cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04571cztM0_level2_quad_clean.evt
Size (bytes)477,676,80077,541,120
Size455.5 MB 73.9 MB
Events in quadrant A2,918,792486,428
Events in quadrant B3,367,833485,235
Events in quadrant C2,934,924482,496
Events in quadrant D4,813,839450,765

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131893
B0143192
C0132082
D0185742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A635290.141688%
B6352751.180730%
C635290.141688%
D63524046.360202%

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 8668 6354 0 0 0.00% 0.00%
B 8668 6354 40 40 0.46% 0.63%
C 8668 6354 2 2 0.02% 0.03%
D 8668 6354 374 374 4.31% 5.89%

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 0 50 82522 548.95 730 712 149.0
A 8 15 19227 124.24 730 712 149.0
A 12 194 7579 46.08 730 712 149.0
B 10 16 293215 2086.67 740 723 140.2
B 14 167 90703 641.93 740 723 140.2
B 15 54 24917 172.6 740 723 140.2
C 14 48 98253 581.57 719 721 167.7
C 5 250 14539 82.4 719 721 167.7
C 13 61 5780 30.17 719 721 167.7
D 13 235 1557911 9335.47 686 667 166.8
D 2 136 176619 1054.81 686 667 166.8
D 9 35 124787 744.08 686 667 166.8

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