ASTROSAT CZTI

Data Quality Report

Orbit 09043

Creation date: 2024-06-27T15:40:28.606364
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/AS1G07_027T01_9000001258_09043cztM0_level2.evt modeM0/AS1G07_027T01_9000001258_09043cztM0_level2_quad_clean.evt
Size (bytes)435,692,16096,727,680
Size415.5 MB 92.2 MB
Events in quadrant A3,281,938624,226
Events in quadrant B3,151,189632,351
Events in quadrant C2,945,250622,302
Events in quadrant D3,374,342596,870

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139913
B0136522
C0133252
D0146542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6504420.645756%
B6504540.830258%
C6504160.246002%
D6504791.214637%

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 7594 6505 3 3 0.04% 0.05%
B 7594 6505 10 10 0.13% 0.15%
C 7594 6505 0 0 0.00% 0.00%
D 7594 6505 59 59 0.78% 0.91%

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 223511 1405.55 776 764 158.5
A 1 162 32164 198.14 776 764 158.5
A 15 174 13154 78.18 776 764 158.5
B 10 252 27512 179.79 783 766 148.8
B 10 245 17826 114.68 783 766 148.8
B 12 111 15713 100.48 783 766 148.8
C 13 61 5708 28.34 754 761 174.5
C 12 4 3041 13.06 754 761 174.5
C 3 202 1800 5.95 754 761 174.5
D 2 14 207123 1107.28 742 724 186.4
D 6 225 164209 877.06 742 724 186.4
D 1 52 73772 391.89 742 724 186.4

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