ASTROSAT CZTI

Data Quality Report

Orbit 03324

Creation date: 2024-06-27T14:27:34.368823
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/AS1G05_241T02_9000000448_03324cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03324cztM0_level2_quad_clean.evt
Size (bytes)327,133,44057,666,240
Size312.0 MB 55.0 MB
Events in quadrant A2,130,322353,240
Events in quadrant B2,664,833354,476
Events in quadrant C2,631,198351,027
Events in quadrant D2,147,330343,875

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100200
B0111860
C0113580
D0102020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4891501.022286%
B4891631.288080%
C48911222.494377%
D4891380.776937%

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 4891 4891 4 4 0.08% 0.08%
B 4891 4891 15 15 0.31% 0.31%
C 4891 4891 89 89 1.82% 1.82%
D 4891 4891 10 10 0.20% 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 0 118 29009 249.97 541 527 113.9
A 0 50 11077 92.59 541 527 113.9
A 0 226 8272 67.97 541 527 113.9
B 15 204 288015 2637.64 551 538 109.0
B 2 249 167334 1530.38 551 538 109.0
B 0 229 39807 360.3 551 538 109.0
C 14 223 497961 3977.23 529 532 125.1
C 1 16 38688 305.08 529 532 125.1
C 6 80 8021 59.88 529 532 125.1
D 14 34 48533 370.03 528 511 129.8
D 13 223 41871 318.69 528 511 129.8
D 13 239 32333 245.2 528 511 129.8

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
Veto Counter