ASTROSAT CZTI

Data Quality Report

Orbit 04097

Creation date: 2024-06-27T14:37:19.458513
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/AS1G05_192T01_9000000522_04097cztM0_level2.evt modeM0/AS1G05_192T01_9000000522_04097cztM0_level2_quad_clean.evt
Size (bytes)517,055,04085,512,960
Size493.1 MB 81.6 MB
Events in quadrant A3,198,881545,615
Events in quadrant B6,039,368522,002
Events in quadrant C2,913,589551,002
Events in quadrant D3,076,429527,589

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140503
B0223782
C0130422
D0138272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6346570.898204%
B634669110.888749%
C6346160.252127%
D6346590.929720%

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 7606 6347 20 20 0.26% 0.32%
B 7606 6347 448 448 5.89% 7.06%
C 7606 6347 0 0 0.00% 0.00%
D 7606 6347 46 46 0.60% 0.72%

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 0 199 240848 1579.97 745 729 152.0
A 14 111 32841 211.29 745 729 152.0
A 0 50 30449 195.55 745 729 152.0
B 3 0 2902915 20729.92 741 725 140.0
B 10 16 136122 967.12 741 725 140.0
B 14 167 53364 375.99 741 725 140.0
C 14 67 12013 65.21 741 744 172.8
C 13 61 6144 31.25 741 744 172.8
C 9 144 4905 24.08 741 744 172.8
D 10 172 193761 1089.86 726 703 177.1
D 13 239 64831 362.02 726 703 177.1
D 2 14 32772 181.03 726 703 177.1

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