ASTROSAT CZTI

Data Quality Report

Orbit 43228

Creation date: 2024-06-27T22:49:33.166337
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/AS1A06_006T01_9000005860_43228cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43228cztM0_level2_quad_clean.evt
Size (bytes)315,982,08084,738,240
Size301.3 MB 80.8 MB
Events in quadrant A3,794,319545,739
Events in quadrant B2,216,632595,972
Events in quadrant C2,450,518568,009
Events in quadrant D2,856,947515,951

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143142
B097922
C0100432
D0116342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48552966.096807%
B485550.102987%
C4855140.288363%
D4854831.709930%

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 6978 4856 256 256 3.67% 5.27%
B 6978 4856 1 1 0.01% 0.02%
C 6978 4856 11 11 0.16% 0.23%
D 6977 4855 79 79 1.13% 1.63%

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 15 237 533815 4746.09 543 533 112.4
A 10 83 522345 4644.01 543 533 112.4
A 13 248 501720 4460.45 543 533 112.4
B 0 189 27478 252.0 552 536 106.9
B 5 255 16890 152.97 552 536 106.9
B 12 111 13110 117.61 552 536 106.9
C 15 214 203232 1567.45 549 552 129.3
C 14 254 72073 553.12 549 552 129.3
C 15 159 19872 149.41 549 552 129.3
D 1 52 347319 2548.58 549 534 136.1
D 12 16 235862 1729.46 549 534 136.1
D 1 20 44837 325.59 549 534 136.1

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