ASTROSAT CZTI

Data Quality Report

Orbit 12547

Creation date: 2024-06-27T16:29:00.294985
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/AS1C02_016T01_9000001858_12547cztM0_level2.evt modeM0/AS1C02_016T01_9000001858_12547cztM0_level2_quad_clean.evt
Size (bytes)377,066,88096,413,760
Size359.6 MB 91.9 MB
Events in quadrant A2,691,434644,027
Events in quadrant B2,923,128655,656
Events in quadrant C2,232,414658,734
Events in quadrant D3,234,279613,033

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113381
B0121521
C0101991
D0131251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4965260.523666%
B49652404.833837%
C496550.100705%
D49661683.383004%

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 4966 4966 7 7 0.14% 0.14%
B 4966 4966 136 136 2.74% 2.74%
C 4966 4966 0 0 0.00% 0.00%
D 4967 4967 120 120 2.42% 2.42%

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 1 162 128780 1093.94 578 566 117.2
A 8 15 111452 946.1 578 566 117.2
A 1 178 73939 626.03 578 566 117.2
B 4 239 589795 5488.81 575 561 107.4
B 15 222 31694 290.01 575 561 107.4
B 5 250 18861 170.47 575 561 107.4
C 13 61 4191 27.56 571 575 131.2
C 3 233 1885 9.98 571 575 131.2
C 3 202 1502 7.07 571 575 131.2
D 1 52 604234 4580.09 556 539 131.8
D 1 255 288672 2186.0 556 539 131.8
D 13 104 120546 910.46 556 539 131.8

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