ASTROSAT CZTI

Data Quality Report

Orbit 10379

Creation date: 2024-06-27T15:58:38.528749
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/AS1A03_073T01_9000001498_10379cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10379cztM0_level2_quad_clean.evt
Size (bytes)463,144,32090,239,040
Size441.7 MB 86.1 MB
Events in quadrant A3,183,948574,855
Events in quadrant B3,383,514581,784
Events in quadrant C3,142,406583,152
Events in quadrant D3,884,140548,949

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132932
B0138371
C0133091
D0155951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63671472.308780%
B63671752.748547%
C63671412.214544%
D63671772.779959%

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 7557 6367 0 0 0.00% 0.00%
B 7557 6367 18 18 0.24% 0.28%
C 7557 6367 6 6 0.08% 0.09%
D 7557 6367 25 25 0.33% 0.39%

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 15 25215 149.1 817 801 163.7
A 3 1 11458 65.08 817 801 163.7
A 0 226 7560 41.28 817 801 163.7
B 4 239 148094 962.63 813 794 153.0
B 0 214 34918 223.01 813 794 153.0
B 11 51 19161 120.03 813 794 153.0
C 11 7 19637 103.1 798 802 182.7
C 14 234 7293 35.53 798 802 182.7
C 13 61 5899 27.9 798 802 182.7
D 8 195 480669 2592.04 788 769 185.1
D 2 33 172471 927.4 788 769 185.1
D 1 20 113516 608.97 788 769 185.1

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