ASTROSAT CZTI

Data Quality Report

Orbit 03512

Creation date: 2024-06-27T14:30:21.235041
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_045T01_9000000468_03512cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03512cztM0_level2_quad_clean.evt
Size (bytes)425,344,32084,142,080
Size405.6 MB 80.2 MB
Events in quadrant A3,325,761531,266
Events in quadrant B3,324,470536,833
Events in quadrant C3,077,924526,772
Events in quadrant D2,722,796511,294

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143812
B0140181
C0137011
D0129661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63421472.317881%
B6342470.741091%
C6342751.182592%
D6342500.788395%

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 7287 6342 39 39 0.54% 0.61%
B 7287 6342 3 3 0.04% 0.05%
C 7287 6342 42 42 0.58% 0.66%
D 7287 6342 8 8 0.11% 0.13%

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 0 50 433473 2940.28 713 696 147.2
A 8 15 104107 702.57 713 696 147.2
A 15 236 30325 201.3 713 696 147.2
B 15 204 345726 2427.47 724 706 142.1
B 4 170 51251 355.62 724 706 142.1
B 4 81 33217 228.74 724 706 142.1
C 1 192 295497 1811.02 693 696 162.8
C 1 16 38594 232.82 693 696 162.8
C 8 128 17408 102.67 693 696 162.8
D 7 39 26354 153.91 692 670 166.9
D 2 206 22928 133.38 692 670 166.9
D 5 233 22718 132.12 692 670 166.9

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