ASTROSAT CZTI

Data Quality Report

Orbit 12014

Creation date: 2024-06-27T16:21:12.783855
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_112T01_9000001778_12014cztM0_level2.evt modeM0/AS1A04_112T01_9000001778_12014cztM0_level2_quad_clean.evt
Size (bytes)350,467,20062,818,560
Size334.2 MB 59.9 MB
Events in quadrant A1,904,751425,361
Events in quadrant B3,721,726401,394
Events in quadrant C1,717,717432,477
Events in quadrant D3,021,283384,769

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080902
B0134841
C075541
D0113961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3644621.701427%
B364479221.734358%
C3644150.411636%
D364439810.922064%

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 4930 3645 22 22 0.45% 0.60%
B 4930 3645 596 596 12.09% 16.35%
C 4930 3646 1 1 0.02% 0.03%
D 4930 3646 357 357 7.24% 9.79%

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 13 248 58488 644.45 442 433 90.1
A 1 162 57271 630.94 442 433 90.1
A 1 178 27947 305.43 442 433 90.1
B 4 206 1678461 20768.61 424 413 80.8
B 3 64 215797 2665.73 424 413 80.8
B 4 239 89619 1104.07 424 413 80.8
C 14 234 3635 31.5 439 441 101.4
C 13 61 3338 28.57 439 441 101.4
C 0 207 1601 11.44 439 441 101.4
D 1 52 1111520 11170.87 412 401 99.5
D 13 122 80833 808.64 412 401 99.5
D 8 195 71214 711.93 412 401 99.5

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