ASTROSAT CZTI

Data Quality Report

Orbit 14489

Creation date: 2024-06-27T16:55:54.463397
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/AS1G08_034T02_9000002136_14489cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14489cztM0_level2_quad_clean.evt
Size (bytes)443,989,440106,873,920
Size423.4 MB 101.9 MB
Events in quadrant A3,145,275705,898
Events in quadrant B3,378,345719,519
Events in quadrant C3,122,196706,015
Events in quadrant D3,385,413679,026

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131413
B0140402
C0132242
D0141052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6108340.556647%
B6108651.064178%
C6108220.360183%
D61081322.161100%

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 7474 6110 0 0 0.00% 0.00%
B 7474 6110 10 10 0.13% 0.16%
C 7474 6110 0 0 0.00% 0.00%
D 7474 6110 100 100 1.34% 1.64%

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 12 189 57686 363.82 781 767 156.4
A 11 29 44350 278.57 781 767 156.4
A 4 2 22476 138.76 781 767 156.4
B 0 189 77883 521.42 789 771 147.9
B 10 245 69710 466.16 789 771 147.9
B 0 182 35386 234.06 789 771 147.9
C 3 233 83943 471.46 768 772 176.4
C 0 207 41851 232.86 768 772 176.4
C 13 61 5428 26.39 768 772 176.4
D 10 199 339656 1879.99 755 739 180.3
D 10 70 102324 563.5 755 739 180.3
D 2 120 32767 177.66 755 739 180.3

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