ASTROSAT CZTI

Data Quality Report

Orbit 11313

Creation date: 2024-06-27T16:11:09.855470
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/AS1A04_137T01_9000001654_11313cztM0_level2.evt modeM0/AS1A04_137T01_9000001654_11313cztM0_level2_quad_clean.evt
Size (bytes)598,282,56082,080,000
Size570.6 MB 78.3 MB
Events in quadrant A3,622,269522,095
Events in quadrant B5,589,121469,558
Events in quadrant C3,321,587546,674
Events in quadrant D5,155,818503,714

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148152
B0205821
C0140801
D0195391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63441582.490542%
B6344101916.062421%
C6344781.229508%
D63445809.142497%

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 7254 6345 64 64 0.88% 1.01%
B 7254 6344 582 582 8.02% 9.17%
C 7254 6345 32 32 0.44% 0.50%
D 7254 6345 259 259 3.57% 4.08%

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 5 542380 3476.99 754 737 155.8
A 14 238 57216 362.56 754 737 155.8
A 1 162 36955 232.5 754 737 155.8
B 3 64 1997171 14501.4 705 686 137.7
B 4 239 660576 4793.09 705 686 137.7
B 15 204 64692 464.91 705 686 137.7
C 9 204 443538 2594.5 737 742 170.7
C 13 61 5444 27.55 737 742 170.7
C 5 128 3687 17.26 737 742 170.7
D 1 52 1713816 9775.94 721 699 175.2
D 10 253 252031 1434.23 721 699 175.2
D 2 120 145896 828.57 721 699 175.2

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