ASTROSAT CZTI

Data Quality Report

Orbit 32000

Creation date: 2024-06-27T20:35:05.731083
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/AS1C06_010T03_9000004676_32000cztM0_level2.evt modeM0/AS1C06_010T03_9000004676_32000cztM0_level2_quad_clean.evt
Size (bytes)545,034,240123,744,960
Size519.8 MB 118.0 MB
Events in quadrant A2,927,011850,682
Events in quadrant B4,919,334853,645
Events in quadrant C4,571,094801,477
Events in quadrant D3,661,946802,059

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128561
B0193781
C0177641
D0151121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6304180.285533%
B63051101.744647%
C63053896.169707%
D63051131.792228%

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 7384 6304 0 0 0.00% 0.00%
B 7385 6305 29 29 0.39% 0.46%
C 7385 6305 52 52 0.70% 0.82%
D 7385 6306 78 78 1.06% 1.24%

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 13 254 11540 71.77 756 742 150.4
A 13 6 7625 45.75 756 742 150.4
A 3 137 7469 44.71 756 742 150.4
B 6 159 1776451 12614.0 748 728 140.8
B 10 245 92259 650.2 748 728 140.8
B 0 190 70496 495.6 748 728 140.8
C 3 233 1280184 7654.64 712 717 167.1
C 0 10 301593 1800.04 712 717 167.1
C 14 238 133457 794.14 712 717 167.1
D 8 195 455596 2687.69 721 702 169.3
D 13 249 149993 882.07 721 702 169.3
D 2 250 113843 668.48 721 702 169.3

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