ASTROSAT CZTI

Data Quality Report

Orbit 27547

Creation date: 2024-06-27T19:41:22.449412
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/AS1A09_038T29_9000003954_27547cztM0_level2.evt modeM0/AS1A09_038T29_9000003954_27547cztM0_level2_quad_clean.evt
Size (bytes)318,559,68065,669,760
Size303.8 MB 62.6 MB
Events in quadrant A1,978,020429,361
Events in quadrant B2,139,043440,940
Events in quadrant C2,042,412429,850
Events in quadrant D3,212,173402,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081480
B086040
C082730
D0121610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A404430.074184%
B4045210.519159%
C4045180.444994%
D40442796.899110%

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 4044 4044 0 0 0.00% 0.00%
B 4045 4045 13 13 0.32% 0.32%
C 4045 4045 0 0 0.00% 0.00%
D 4045 4045 230 230 5.69% 5.69%

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 13 254 6284 56.73 512 503 101.9
A 3 137 4412 38.36 512 503 101.9
A 0 226 4313 37.39 512 503 101.9
B 10 245 48600 506.9 511 500 94.9
B 4 52 43894 457.31 511 500 94.9
B 15 32 28905 299.35 511 500 94.9
C 14 238 82908 711.74 501 505 115.8
C 2 16 3769 28.19 501 505 115.8
C 13 61 3428 25.25 501 505 115.8
D 1 52 1280849 11165.97 486 476 114.7
D 2 250 35296 303.66 486 476 114.7
D 12 227 23955 204.76 486 476 114.7

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