ASTROSAT CZTI

Data Quality Report

Orbit 07216

Creation date: 2024-06-27T15:17:00.769928
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/AS1G06_083T01_9000000984_07216cztM0_level2.evt modeM0/AS1G06_083T01_9000000984_07216cztM0_level2_quad_clean.evt
Size (bytes)466,289,28093,280,320
Size444.7 MB 89.0 MB
Events in quadrant A2,869,827603,080
Events in quadrant B3,972,551612,210
Events in quadrant C3,117,353598,675
Events in quadrant D3,728,878566,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131601
B0160540
C0138800
D0153040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63642313.629793%
B63645228.202388%
C63641953.064111%
D63642423.802640%

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 6364 6364 1 1 0.02% 0.02%
B 6364 6364 244 244 3.83% 3.83%
C 6364 6364 29 29 0.46% 0.46%
D 6364 6364 52 52 0.82% 0.82%

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 0 226 7222 42.97 738 720 151.3
A 12 194 6679 39.38 738 720 151.3
A 15 174 6270 36.68 738 720 151.3
B 10 16 892651 6270.65 740 720 142.2
B 0 214 106111 740.94 740 720 142.2
B 0 228 32757 225.23 740 720 142.2
C 9 243 264766 1576.29 725 724 167.5
C 9 68 11086 61.86 725 724 167.5
C 13 61 5573 28.95 725 724 167.5
D 2 216 365343 2068.34 719 694 176.3
D 8 195 168148 949.82 719 694 176.3
D 2 14 153064 864.26 719 694 176.3

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