ASTROSAT CZTI

Data Quality Report

Orbit 47330

Creation date: 2024-06-29T06:43:16.242868
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_037T01_9000006318_47330cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47330cztM0_level2_quad_clean.evt
Size (bytes)582,160,32099,878,400
Size555.2 MB 95.3 MB
Events in quadrant A8,201,555647,280
Events in quadrant B2,952,436758,632
Events in quadrant C2,959,693711,248
Events in quadrant D6,949,742469,393

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287592
B0131122
C0132432
D0249642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A626880412.827058%
B6268360.574346%
C6268190.303127%
D6268181528.956605%

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 7498 6269 463 463 6.17% 7.39%
B 7498 6269 4 4 0.05% 0.06%
C 7498 6269 8 8 0.11% 0.13%
D 7498 6268 1329 1329 17.72% 21.20%

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 3300549 23355.03 687 673 141.3
A 15 235 1669192 11809.02 687 673 141.3
A 9 191 553765 3914.53 687 673 141.3
B 4 171 21528 145.69 724 701 143.0
B 5 32 18350 123.46 724 701 143.0
B 12 111 17894 120.27 724 701 143.0
C 12 2 156919 927.29 711 714 168.5
C 3 233 16073 91.18 711 714 168.5
C 12 249 10680 59.16 711 714 168.5
D 12 2 4204719 29152.63 564 548 144.2
D 10 204 276565 1913.96 564 548 144.2
D 2 249 59135 406.25 564 548 144.2

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