ASTROSAT CZTI

Data Quality Report

Orbit 34150

Creation date: 2024-06-27T20:57:07.905213
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/AS1A11_059T05_9000004876_34150cztM0_level2.evt modeM0/AS1A11_059T05_9000004876_34150cztM0_level2_quad_clean.evt
Size (bytes)491,264,64056,566,080
Size468.5 MB 53.9 MB
Events in quadrant A2,446,790344,367
Events in quadrant B5,275,588321,984
Events in quadrant C3,378,794348,319
Events in quadrant D3,420,851330,323

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0390

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105583
B0189732
C0130682
D0136702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A524660.114373%
B5246105020.015250%
C52462043.888677%
D5246370.705299%

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 7099 5247 0 0 0.00% 0.00%
B 7099 5247 891 891 12.55% 16.98%
C 7099 5247 162 162 2.28% 3.09%
D 7099 5247 30 30 0.42% 0.57%

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 21072 162.67 626 614 125.8
A 13 254 8857 65.54 626 614 125.8
A 13 6 7506 54.8 626 614 125.8
B 5 31 1035977 8893.21 600 586 116.4
B 5 15 987130 8473.66 600 586 116.4
B 5 14 629046 5397.99 600 586 116.4
C 0 10 471325 3366.81 605 611 139.8
C 14 254 242056 1726.95 605 611 139.8
C 15 214 222534 1587.32 605 611 139.8
D 8 195 692434 4600.07 612 595 150.4
D 10 118 174809 1158.36 612 595 150.4
D 2 250 51241 336.75 612 595 150.4

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