ASTROSAT CZTI

Data Quality Report

Orbit 40432

Creation date: 2024-06-27T22:16:02.725638
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/AS1A12_022T01_9000005540_40432cztM0_level2.fits modeM0/AS1A12_022T01_9000005540_40432cztM0_level2_quad_clean.evt
Size (bytes)312,891,84096,252,480
Size298.4 MB 91.8 MB
Events in quadrant A3,013,574670,100
Events in quadrant B2,595,475688,635
Events in quadrant C2,595,285642,908
Events in quadrant D2,975,762552,144

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122303
B0106062
C0105642
D0121532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5156330.640031%
B515650.096974%
C515650.096974%
D51564508.727696%

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 7280 5157 17 17 0.23% 0.33%
B 7280 5157 1 1 0.01% 0.02%
C 7280 5157 1 1 0.01% 0.02%
D 7280 5157 52 52 0.71% 1.01%

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 469792 3797.29 616 607 123.6
A 15 235 52215 417.68 616 607 123.6
A 13 248 45459 363.0 616 607 123.6
B 3 112 134316 1162.9 610 594 115.0
B 4 170 50800 436.61 610 594 115.0
B 12 111 13906 115.77 610 594 115.0
C 15 214 222259 1625.92 599 605 136.3
C 5 250 13033 91.16 599 605 136.3
C 0 10 12418 86.65 599 605 136.3
D 13 171 205853 1485.54 571 556 138.2
D 12 191 149353 1076.7 571 556 138.2
D 2 250 142998 1030.72 571 556 138.2

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