ASTROSAT CZTI

Data Quality Report

Orbit 05849

Creation date: 2024-06-27T14:59:58.178346
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/AS1G06_039T01_9000000758_05849cztM0_level2.evt modeM0/AS1G06_039T01_9000000758_05849cztM0_level2_quad_clean.evt
Size (bytes)471,686,400105,554,880
Size449.8 MB 100.7 MB
Events in quadrant A2,922,012714,371
Events in quadrant B3,004,135717,377
Events in quadrant C2,863,633703,601
Events in quadrant D5,051,682606,254

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133154
B0133963
C0133063
D0197343

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6523911.395064%
B65231111.701671%
C6523550.843170%
D652388313.536716%

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 6525 0 0 0.00% 0.00%
B 7613 6525 0 0 0.00% 0.00%
C 7613 6525 0 0 0.00% 0.00%
D 7613 6524 515 515 6.76% 7.89%

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 13 251 10659 64.74 754 738 153.2
A 0 226 7313 42.91 754 738 153.2
A 15 234 7215 42.27 754 738 153.2
B 15 204 41533 282.37 759 739 144.5
B 0 219 13997 91.77 759 739 144.5
B 12 111 13376 87.47 759 739 144.5
C 8 128 13511 76.82 725 730 166.4
C 8 112 7064 38.07 725 730 166.4
C 13 61 5776 30.33 725 730 166.4
D 1 239 1762991 10948.06 659 637 161.0
D 2 152 384393 2383.96 659 637 161.0
D 9 85 258604 1602.54 659 637 161.0

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