ASTROSAT CZTI

Data Quality Report

Orbit 08200

Creation date: 2024-06-27T15:29:22.571553
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/AS1A03_106T01_9000001130_08200cztM0_level2.evt modeM0/AS1A03_106T01_9000001130_08200cztM0_level2_quad_clean.evt
Size (bytes)353,986,56086,005,440
Size337.6 MB 82.0 MB
Events in quadrant A2,624,362554,670
Events in quadrant B2,685,754563,239
Events in quadrant C2,453,191553,554
Events in quadrant D2,569,271535,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118781
B0118441
C0115601
D0117913

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5691841.476015%
B5691741.300299%
C5691460.808294%
D5690480.843585%

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 6106 5691 0 0 0.00% 0.00%
B 6106 5691 2 2 0.03% 0.04%
C 6106 5691 0 0 0.00% 0.00%
D 6106 5691 7 7 0.11% 0.12%

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 15 79 106892 786.47 646 630 135.1
A 8 15 22788 164.0 646 630 135.1
A 0 128 6959 46.84 646 630 135.1
B 0 214 51582 404.92 651 635 125.8
B 4 81 45407 355.85 651 635 125.8
B 0 219 40934 320.29 651 635 125.8
C 13 61 4856 28.7 628 629 147.3
C 3 202 1483 5.8 628 629 147.3
C 4 191 1389 5.16 628 629 147.3
D 1 52 68927 444.08 627 608 153.8
D 6 225 32601 207.96 627 608 153.8
D 1 7 23707 150.15 627 608 153.8

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