ASTROSAT CZTI

Data Quality Report

Orbit 43143

Creation date: 2024-06-27T22:48:36.383174
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/AS1A09_107T01_9000005854_43143cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43143cztM0_level2_quad_clean.evt
Size (bytes)344,975,04088,614,720
Size329.0 MB 84.5 MB
Events in quadrant A3,421,286580,671
Events in quadrant B2,314,331606,732
Events in quadrant C2,428,202600,733
Events in quadrant D4,198,995529,363

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134511
B0105812
C0106282
D0161773

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52261232.353617%
B522750.095657%
C522730.057394%
D52263256.218905%

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 7289 5227 85 85 1.17% 1.63%
B 7290 5228 0 0 0.00% 0.00%
C 7290 5228 2 2 0.03% 0.04%
D 7289 5227 299 299 4.10% 5.72%

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 585392 5151.95 553 542 113.5
A 15 237 390168 3432.22 553 542 113.5
A 12 189 232605 2044.25 553 542 113.5
B 0 186 42448 397.18 554 538 105.5
B 0 229 33129 308.86 554 538 105.5
B 0 230 24633 228.35 554 538 105.5
C 15 214 236397 1887.65 544 548 124.9
C 14 254 53800 426.21 544 548 124.9
C 12 249 7707 57.3 544 548 124.9
D 1 52 1877614 14274.71 535 520 131.5
D 10 118 71001 535.99 535 520 131.5
D 12 233 70761 534.16 535 520 131.5

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