ASTROSAT CZTI

Data Quality Report

Orbit 29989

Creation date: 2024-06-27T20:09:29.908324
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/AS1A10_071T05_9000004308_29989cztM0_level2.evt modeM0/AS1A10_071T05_9000004308_29989cztM0_level2_quad_clean.evt
Size (bytes)685,103,04079,790,400
Size653.4 MB 76.1 MB
Events in quadrant A3,266,791515,361
Events in quadrant B5,067,429521,483
Events in quadrant C3,416,359492,791
Events in quadrant D8,553,709427,547

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136922
B0198232
C0140992
D0300402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6575440.669202%
B6575560.851711%
C65751021.551331%
D6575155223.604563%

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 7666 6576 4 4 0.05% 0.06%
B 7666 6576 1 1 0.01% 0.02%
C 7666 6576 23 23 0.30% 0.35%
D 7666 6576 1243 1243 16.21% 18.90%

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 8 192 32016 189.1 834 820 165.0
A 12 96 14754 84.46 834 820 165.0
A 13 254 11615 65.43 834 820 165.0
B 6 159 1797225 11374.76 826 805 157.9
B 12 111 19915 121.0 826 805 157.9
B 11 111 18082 109.4 826 805 157.9
C 3 233 164827 877.59 793 801 186.9
C 14 238 136447 725.74 793 801 186.9
C 2 114 15244 77.27 793 801 186.9
D 7 80 5627968 32910.43 720 702 171.0
D 8 195 125792 731.57 720 702 171.0
D 2 250 58484 337.93 720 702 171.0

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