ASTROSAT CZTI

Data Quality Report

Orbit 47733

Creation date: 2024-07-26T09:33:46.202565
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/AS1T05_213T01_9000006344_47733cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47733cztM0_level2_quad_clean.evt
Size (bytes)489,862,080101,805,120
Size467.2 MB 97.1 MB
Events in quadrant A6,431,065684,010
Events in quadrant B2,993,875711,195
Events in quadrant C3,007,062684,644
Events in quadrant D5,200,259552,853

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237421
B0135331
C0136801
D0200422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64501442.232558%
B6450460.713178%
C6451460.713068%
D645084713.131783%

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 7450 6451 24 24 0.32% 0.37%
B 7450 6451 10 10 0.13% 0.16%
C 7451 6452 26 26 0.35% 0.40%
D 7450 6451 481 481 6.46% 7.46%

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 3626910 24922.63 699 684 145.5
A 9 191 58662 398.48 699 684 145.5
A 7 3 21417 142.5 699 684 145.5
B 0 200 131656 954.05 702 680 137.3
B 5 255 30284 215.64 702 680 137.3
B 0 198 23889 169.06 702 680 137.3
C 14 254 272879 1650.62 699 702 164.9
C 0 207 8620 48.02 699 702 164.9
C 13 61 4527 23.2 699 702 164.9
D 2 165 2318335 13864.11 657 635 167.2
D 2 249 88437 525.22 657 635 167.2
D 7 204 86716 514.92 657 635 167.2

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