ASTROSAT CZTI

Data Quality Report

Orbit 43261

Creation date: 2024-06-27T22:49:54.824861
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_43261cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43261cztM0_level2_quad_clean.evt
Size (bytes)386,432,64094,354,560
Size368.5 MB 90.0 MB
Events in quadrant A3,650,863607,475
Events in quadrant B2,729,010648,449
Events in quadrant C3,182,791622,303
Events in quadrant D4,281,568564,937

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144952
B0123362
C0131862
D0168142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59162243.786342%
B5916170.287356%
C5916871.470588%
D59162534.276538%

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 7347 5917 91 91 1.24% 1.54%
B 7347 5917 6 6 0.08% 0.10%
C 7347 5917 67 67 0.91% 1.13%
D 7347 5917 244 244 3.32% 4.12%

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 631437 4951.78 625 611 127.4
A 15 237 542862 4256.5 625 611 127.4
A 13 248 50767 393.71 625 611 127.4
B 5 255 179102 1430.73 638 621 124.7
B 0 189 20217 157.08 638 621 124.7
B 12 111 16107 124.14 638 621 124.7
C 14 254 457513 3123.25 626 630 146.3
C 15 214 261791 1785.3 626 630 146.3
C 3 233 16602 109.18 626 630 146.3
D 1 52 622698 4021.66 619 600 154.7
D 13 249 429572 2773.16 619 600 154.7
D 2 249 381823 2464.48 619 600 154.7

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