ASTROSAT CZTI

Data Quality Report

Orbit 47813

Creation date: 2024-07-31T20:06:34.932854
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/AS1A13_081T01_9000006354_47813cztM0_level2.fits modeM0/AS1A13_081T01_9000006354_47813cztM0_level2_quad_clean.evt
Size (bytes)543,525,120113,454,720
Size518.3 MB 108.2 MB
Events in quadrant A6,989,365771,616
Events in quadrant B3,969,331779,853
Events in quadrant C3,090,442739,180
Events in quadrant D5,511,914642,889

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263310
B0166000
C0148120
D0213370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72051161.609993%
B7205440.610687%
C7205190.263706%
D72056128.494101%

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 7205 7205 2 2 0.03% 0.03%
B 7205 7205 8 8 0.11% 0.11%
C 7205 7205 15 15 0.21% 0.21%
D 7205 7205 581 581 8.06% 8.06%

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 3893170 23926.73 785 766 162.7
A 13 248 50203 303.89 785 766 162.7
A 3 137 9247 52.13 785 766 162.7
B 10 7 418260 2748.48 778 755 151.9
B 0 200 240352 1577.29 778 755 151.9
B 0 155 110171 720.3 778 755 151.9
C 14 254 80821 445.36 766 767 179.8
C 12 2 11933 62.12 766 767 179.8
C 12 250 9036 46.0 766 767 179.8
D 12 2 1749506 9369.72 746 719 186.6
D 12 233 387563 2072.65 746 719 186.6
D 13 84 121052 644.72 746 719 186.6

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