ASTROSAT CZTI

Data Quality Report

Orbit 45273

Creation date: 2024-06-27T23:11:48.663078
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/AS1A13_024T03_9000006064_45273cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45273cztM0_level2_quad_clean.evt
Size (bytes)465,877,440109,229,760
Size444.3 MB 104.2 MB
Events in quadrant A5,361,081735,558
Events in quadrant B3,263,277768,971
Events in quadrant C3,100,927728,185
Events in quadrant D5,006,227613,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208281
B0143361
C0141511
D0196161

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66111532.314325%
B66111311.981546%
C6612751.134301%
D66115598.455604%

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 7581 6612 7 7 0.09% 0.11%
B 7581 6612 27 27 0.36% 0.41%
C 7582 6614 32 32 0.42% 0.48%
D 7581 6612 514 514 6.78% 7.77%

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 10 83 2420928 15470.58 746 730 156.4
A 13 248 39428 247.37 746 730 156.4
A 15 174 9182 54.03 746 730 156.4
B 4 171 172311 1171.36 747 725 146.5
B 5 172 36344 243.16 747 725 146.5
B 0 168 29506 196.48 747 725 146.5
C 14 254 133513 769.26 732 737 172.6
C 12 2 92756 533.13 732 737 172.6
C 2 14 10059 54.01 732 737 172.6
D 13 249 1176573 6780.08 697 676 173.4
D 2 249 713349 4109.19 697 676 173.4
D 11 241 206082 1184.35 697 676 173.4

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