ASTROSAT CZTI

Data Quality Report

Orbit 39293

Creation date: 2024-06-27T22:02:50.382975
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/AS1A12_042T01_9000005462_39293cztM0_level2.fits modeM0/AS1A12_042T01_9000005462_39293cztM0_level2_quad_clean.evt
Size (bytes)273,427,20040,697,280
Size260.8 MB 38.8 MB
Events in quadrant A1,601,951310,324
Events in quadrant B1,873,814293,892
Events in quadrant C1,285,593298,774
Events in quadrant D5,147,675136,305

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063632
B073631
C054421
D0171631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2705250.924214%
B27052288.428835%
C270520.073937%
D2705152256.266174%

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 3988 2706 9 9 0.23% 0.33%
B 3988 2706 140 140 3.51% 5.17%
C 3988 2706 0 0 0.00% 0.00%
D 3988 2706 1363 1363 34.18% 50.37%

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 223931 3463.06 311 304 64.6
A 13 248 139300 2152.48 311 304 64.6
A 15 222 30854 473.09 311 304 64.6
B 5 172 625869 10547.75 297 288 59.3
B 5 255 50234 842.13 297 288 59.3
B 12 111 7353 119.12 297 288 59.3
C 15 214 115035 1624.38 299 300 70.6
C 9 187 2446 30.38 299 300 70.6
C 13 61 2000 24.07 299 300 70.6
D 12 235 3333179 64790.18 205 198 51.4
D 12 227 403968 7848.93 205 198 51.4
D 5 32 215267 4180.75 205 198 51.4

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