ASTROSAT CZTI

Data Quality Report

Orbit 21063

Creation date: 2024-06-27T18:23:18.807534
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/AS1A05_155T04_9000003114_21063cztM0_level2.evt modeM0/AS1A05_155T04_9000003114_21063cztM0_level2_quad_clean.evt
Size (bytes)441,308,16078,816,960
Size420.9 MB 75.2 MB
Events in quadrant A3,126,976493,266
Events in quadrant B3,520,103493,692
Events in quadrant C3,163,699476,150
Events in quadrant D3,110,513468,372

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134141
B0144041
C0134341
D0136951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65191081.656696%
B65201983.036810%
C65201472.254601%
D6520851.303681%

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 7329 6520 3 3 0.04% 0.05%
B 7330 6521 49 49 0.67% 0.75%
C 7330 6521 0 0 0.00% 0.00%
D 7330 6521 11 11 0.15% 0.17%

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 12 96 23743 142.01 805 788 161.6
A 13 254 8540 47.96 805 788 161.6
A 0 226 6907 37.85 805 788 161.6
B 7 220 310443 2029.65 802 779 152.6
B 0 219 26708 169.95 802 779 152.6
B 0 190 23126 146.47 802 779 152.6
C 14 238 120928 661.13 774 778 181.7
C 10 91 25734 137.32 774 778 181.7
C 13 61 5373 25.28 774 778 181.7
D 1 52 66243 346.39 783 762 189.0
D 1 20 28715 147.87 783 762 189.0
D 2 234 24229 124.14 783 762 189.0

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