ASTROSAT CZTI

Data Quality Report

Orbit 45824

Creation date: 2024-06-27T23:16:35.305846
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_185T01_9000006128_45824cztM0_level2.fits modeM0/AS1T05_185T01_9000006128_45824cztM0_level2_quad_clean.evt
Size (bytes)529,453,440109,756,800
Size504.9 MB 104.7 MB
Events in quadrant A6,117,311710,431
Events in quadrant B5,335,979744,496
Events in quadrant C2,992,666745,882
Events in quadrant D4,637,338659,432

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222711
B0202801
C0136651
D0181511

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66453925.899172%
B66454927.404063%
C6645961.444695%
D66463024.544087%

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 7570 6646 75 75 0.99% 1.13%
B 7570 6646 215 215 2.84% 3.24%
C 7570 6646 0 0 0.00% 0.00%
D 7571 6647 164 164 2.17% 2.47%

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 2848619 18224.73 757 740 156.3
A 15 14 172093 1096.56 757 740 156.3
A 13 248 167080 1064.48 757 740 156.3
B 3 112 1354518 9184.45 754 729 147.4
B 0 189 388999 2634.12 754 729 147.4
B 0 171 242294 1638.84 754 729 147.4
C 3 233 7811 39.15 765 768 179.9
C 13 61 5174 24.49 765 768 179.9
C 12 2 2331 8.69 765 768 179.9
D 11 241 629388 3341.09 752 730 188.2
D 1 47 301749 1599.81 752 730 188.2
D 6 143 266596 1412.98 752 730 188.2

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