ASTROSAT CZTI

Data Quality Report

Orbit 42889

Creation date: 2024-06-27T22:45:26.358075
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/AS1T05_143T01_9000005830_42889cztM0_level2.fits modeM0/AS1T05_143T01_9000005830_42889cztM0_level2_quad_clean.evt
Size (bytes)390,836,16092,468,160
Size372.7 MB 88.2 MB
Events in quadrant A3,598,235623,753
Events in quadrant B2,764,577641,683
Events in quadrant C3,741,184587,755
Events in quadrant D3,917,464545,858

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141482
B0122252
C0148442
D0155142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57341332.319498%
B5734681.185909%
C57341572.738054%
D57342163.767004%

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 7317 5735 111 111 1.52% 1.94%
B 7317 5735 51 51 0.70% 0.89%
C 7317 5735 147 147 2.01% 2.56%
D 7317 5735 220 220 3.01% 3.84%

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 608051 4742.27 625 612 128.1
A 15 237 518760 4045.18 625 612 128.1
A 13 248 23943 182.14 625 612 128.1
B 15 85 134511 1106.17 621 605 121.1
B 3 112 97832 803.17 621 605 121.1
B 5 172 44564 363.14 621 605 121.1
C 12 2 645272 4586.11 599 601 140.6
C 15 214 246967 1752.62 599 601 140.6
C 5 250 194331 1378.17 599 601 140.6
D 1 52 456730 3077.6 603 585 148.2
D 12 6 375514 2529.63 603 585 148.2
D 13 249 257578 1733.92 603 585 148.2

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