ASTROSAT CZTI

Data Quality Report

Orbit 17314

Creation date: 2024-06-27T17:34:53.049963
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/AS1A05_010T02_9000002556_17314cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17314cztM0_level2_quad_clean.evt
Size (bytes)543,018,24093,265,920
Size517.9 MB 88.9 MB
Events in quadrant A3,150,217609,818
Events in quadrant B3,234,408616,598
Events in quadrant C3,156,918577,864
Events in quadrant D6,438,403541,833

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140723
B0141582
C0140422
D0237732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6858320.466608%
B6858450.656168%
C6858650.947798%
D68586759.842520%

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 7613 6859 0 0 0.00% 0.00%
B 7613 6859 0 0 0.00% 0.00%
C 7613 6859 0 0 0.00% 0.00%
D 7613 6859 762 762 10.01% 11.11%

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 0 226 7116 37.88 819 803 166.7
A 3 137 6134 31.98 819 803 166.7
A 12 194 5861 30.35 819 803 166.7
B 12 111 19306 117.11 819 797 158.0
B 11 111 16449 99.03 819 797 158.0
B 14 111 14367 85.86 819 797 158.0
C 14 238 120057 653.7 777 784 182.5
C 13 61 5364 25.1 777 784 182.5
C 3 233 4606 20.95 777 784 182.5
D 11 176 2742636 14638.12 767 743 187.3
D 5 222 660977 3524.78 767 743 187.3
D 1 52 96548 511.47 767 743 187.3

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