ASTROSAT CZTI

Data Quality Report

Orbit 05386

Creation date: 2024-06-27T14:54:36.667238
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_214T01_9000000684_05386cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05386cztM0_level2_quad_clean.evt
Size (bytes)793,546,56066,873,600
Size756.8 MB 63.8 MB
Events in quadrant A3,055,917412,164
Events in quadrant B3,162,838421,214
Events in quadrant C3,419,517414,459
Events in quadrant D13,955,120321,560

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135202
B0136391
C0141151
D0458461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6520470.720859%
B6520550.843558%
C6520350.536810%
D6520312247.883436%

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 7570 6521 8 8 0.11% 0.12%
B 7570 6521 3 3 0.04% 0.05%
C 7570 6521 0 0 0.00% 0.00%
D 7570 6521 5120 5120 67.64% 78.52%

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 27502 169.29 771 754 158.0
A 15 234 22589 138.2 771 754 158.0
A 13 6 21594 131.9 771 754 158.0
B 4 81 29549 189.72 787 768 151.7
B 4 48 26407 169.0 787 768 151.7
B 0 219 17687 111.52 787 768 151.7
C 1 16 435487 2471.33 755 761 175.9
C 8 128 16707 90.65 755 761 175.9
C 14 67 7658 39.21 755 761 175.9
D 7 237 10739888 63277.98 680 659 169.7
D 2 63 564194 3320.48 680 659 169.7
D 1 239 31328 180.71 680 659 169.7

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