ASTROSAT CZTI

Data Quality Report

Orbit 10933

Creation date: 2024-06-27T16:05:52.307986
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/AS1G08_039T01_9000001582_10933cztM0_level2.evt modeM0/AS1G08_039T01_9000001582_10933cztM0_level2_quad_clean.evt
Size (bytes)330,989,76048,669,120
Size315.7 MB 46.4 MB
Events in quadrant A2,277,214295,913
Events in quadrant B2,859,318289,822
Events in quadrant C1,909,826291,215
Events in quadrant D2,666,023275,239

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098750
B0115080
C091452
D0108100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4567651.423254%
B45671763.853733%
C456630.065703%
D4567591.291877%

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 4567 4567 56 56 1.23% 1.23%
B 4567 4567 124 124 2.72% 2.72%
C 4567 4567 0 0 0.00% 0.00%
D 4567 4567 48 48 1.05% 1.05%

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 8 5 263165 2509.71 505 496 104.7
A 15 223 35502 334.47 505 496 104.7
A 15 239 16589 153.76 505 496 104.7
B 4 239 821114 8425.18 506 493 97.4
B 15 204 15828 157.44 506 493 97.4
B 0 219 14254 141.28 506 493 97.4
C 13 61 3734 28.39 489 491 114.2
C 8 222 1963 12.88 489 491 114.2
C 12 4 1352 7.54 489 491 114.2
D 8 195 367696 3073.92 484 470 119.5
D 1 52 252503 2109.68 484 470 119.5
D 14 34 93336 777.35 484 470 119.5

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