ASTROSAT CZTI

Data Quality Report

Orbit 05515

Creation date: 2024-06-27T14:56:08.653124
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/AS1A02_162T01_9000000704_05515cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05515cztM0_level2_quad_clean.evt
Size (bytes)572,293,44067,881,600
Size545.8 MB 64.7 MB
Events in quadrant A2,730,496441,286
Events in quadrant B8,255,675351,326
Events in quadrant C2,925,642434,463
Events in quadrant D3,019,581414,563

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122202
B0285541
C0127371
D0131061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5917310.523914%
B5917175329.626500%
C5917340.574616%
D5917330.557715%

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 7192 5918 0 0 0.00% 0.00%
B 7192 5918 1627 1627 22.62% 27.49%
C 7192 5918 12 12 0.17% 0.20%
D 7192 5918 12 12 0.17% 0.20%

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 0 50 37942 262.72 694 682 141.8
A 3 1 9468 61.95 694 682 141.8
A 0 226 7000 44.55 694 682 141.8
B 15 255 5323965 45061.25 624 609 118.1
B 15 204 211229 1782.86 624 609 118.1
B 0 219 97681 821.7 624 609 118.1
C 9 247 151154 978.57 665 668 153.8
C 1 16 148371 960.47 665 668 153.8
C 8 128 10567 64.37 665 668 153.8
D 2 152 149571 927.54 661 639 160.6
D 11 192 128597 796.91 661 639 160.6
D 8 195 88962 550.07 661 639 160.6

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