ASTROSAT CZTI

Data Quality Report

Orbit 09148

Creation date: 2024-06-27T15:41:56.781098
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/AS1C02_042T01_9000001278_09148cztM0_level2.evt modeM0/AS1C02_042T01_9000001278_09148cztM0_level2_quad_clean.evt
Size (bytes)438,621,12090,864,000
Size418.3 MB 86.7 MB
Events in quadrant A3,293,098580,607
Events in quadrant B3,102,037595,861
Events in quadrant C2,961,123577,446
Events in quadrant D3,487,796546,799

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137323
B0133292
C0132242
D0148842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462570.882080%
B6462550.851130%
C6462280.433302%
D64621652.553389%

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 7802 6464 1 1 0.01% 0.02%
B 7802 6463 1 1 0.01% 0.02%
C 7802 6463 1 1 0.01% 0.02%
D 7802 6463 138 138 1.77% 2.14%

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 210485 1334.98 781 766 157.1
A 1 162 45381 284.0 781 766 157.1
A 1 178 8937 52.01 781 766 157.1
B 12 111 15796 102.35 791 773 146.8
B 0 187 13767 88.53 791 773 146.8
B 11 111 12538 80.15 791 773 146.8
C 13 61 5801 29.16 757 762 172.8
C 1 3 4404 21.07 757 762 172.8
C 9 68 3711 17.06 757 762 172.8
D 1 52 549420 2910.95 741 722 188.5
D 2 14 40270 209.81 741 722 188.5
D 13 104 21683 111.2 741 722 188.5

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