ASTROSAT CZTI

Data Quality Report

Orbit 03155

Creation date: 2024-06-27T14:25:18.874942
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_218T02_9000000434_03155cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03155cztM0_level2_quad_clean.evt
Size (bytes)483,125,76075,346,560
Size460.7 MB 71.9 MB
Events in quadrant A4,539,721436,839
Events in quadrant B3,247,062488,441
Events in quadrant C3,252,669468,209
Events in quadrant D3,168,709452,813

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176993
B0137062
C0139142
D0137972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62356139.831596%
B62351041.668003%
C62351342.149158%
D6235741.186848%

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 7535 6235 467 467 6.20% 7.49%
B 7535 6236 24 24 0.32% 0.38%
C 7535 6236 70 70 0.93% 1.12%
D 7535 6236 34 34 0.45% 0.55%

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 14 249 1592503 11249.28 705 691 141.5
A 14 238 108853 764.38 705 691 141.5
A 3 1 92430 648.32 705 691 141.5
B 4 81 108957 749.32 763 745 144.4
B 2 249 91996 631.87 763 745 144.4
B 15 85 54085 369.36 763 745 144.4
C 14 223 386697 2347.17 714 715 164.4
C 6 80 30850 183.25 714 715 164.4
C 14 234 21464 126.18 714 715 164.4
D 13 223 77257 449.42 715 693 170.4
D 13 120 58933 341.86 715 693 170.4
D 12 233 54754 317.33 715 693 170.4

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