ASTROSAT CZTI

Data Quality Report

Orbit 27719

Creation date: 2024-06-27T19:43:29.655919
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/AS1T03_263T01_9000003990_27719cztM0_level2.evt modeM0/AS1T03_263T01_9000003990_27719cztM0_level2_quad_clean.evt
Size (bytes)353,479,68091,673,280
Size337.1 MB 87.4 MB
Events in quadrant A2,458,299627,373
Events in quadrant B2,521,625639,804
Events in quadrant C2,590,784612,805
Events in quadrant D2,829,043581,017

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099850
B0101940
C0104530
D0112360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4484430.958965%
B4484551.226583%
C4484902.007136%
D44841302.899197%

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 5839 4484 3 3 0.05% 0.07%
B 5839 4484 0 0 0.00% 0.00%
C 5839 4484 1 1 0.02% 0.02%
D 5839 4484 61 61 1.04% 1.36%

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 6 16 11490 82.92 632 625 131.0
A 8 192 7724 54.18 632 625 131.0
A 13 254 7346 51.29 632 625 131.0
B 0 230 29519 236.34 629 618 122.3
B 12 111 12973 101.03 629 618 122.3
B 11 111 11823 91.63 629 618 122.3
C 3 233 111720 756.45 607 615 146.9
C 14 238 100900 682.78 607 615 146.9
C 0 207 8267 52.1 607 615 146.9
D 1 52 440929 2947.58 600 588 149.4
D 2 250 53720 355.66 600 588 149.4
D 11 176 36372 239.53 600 588 149.4

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