ASTROSAT CZTI

Data Quality Report

Orbit 45680

Creation date: 2024-06-27T23:14:58.068225
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/AS1A13_071T05_9000006120_45680cztM0_level2.fits modeM0/AS1A13_071T05_9000006120_45680cztM0_level2_quad_clean.evt
Size (bytes)697,752,000106,113,600
Size665.4 MB 101.2 MB
Events in quadrant A6,151,692743,498
Events in quadrant B4,318,197764,813
Events in quadrant C6,186,094699,564
Events in quadrant D8,639,106524,853

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228801
B0173001
C0233981
D0304211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68951912.770123%
B68952443.538796%
C68966229.019722%
D6896182526.464617%

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 7520 6896 7 7 0.09% 0.10%
B 7520 6896 181 181 2.41% 2.62%
C 7521 6897 626 626 8.32% 9.08%
D 7521 6897 1714 1714 22.79% 24.85%

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 10 83 3068997 18667.11 782 764 164.4
A 0 243 19356 113.11 782 764 164.4
A 14 235 18100 105.47 782 764 164.4
B 3 112 716965 4662.65 776 753 153.6
B 5 172 183923 1192.46 776 753 153.6
B 0 189 111604 721.66 776 753 153.6
C 9 54 2786094 15839.21 746 749 175.9
C 14 254 446265 2533.48 746 749 175.9
C 12 2 26871 148.55 746 749 175.9
D 1 52 5213018 29854.36 684 662 174.6
D 11 224 281453 1608.26 684 662 174.6
D 13 249 238805 1363.99 684 662 174.6

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