ASTROSAT CZTI

Data Quality Report

Orbit 13012

Creation date: 2024-06-27T16:35:04.135797
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/AS1T02_002T01_9000001914_13012cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13012cztM0_level2_quad_clean.evt
Size (bytes)485,144,640121,533,120
Size462.7 MB 115.9 MB
Events in quadrant A3,230,080832,228
Events in quadrant B3,979,816823,946
Events in quadrant C2,778,293832,628
Events in quadrant D4,291,316767,180

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134042
B0156721
C0123961
D0167981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60821041.709964%
B60824156.823413%
C6082300.493259%
D60823635.968431%

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 7393 6085 23 23 0.31% 0.38%
B 7393 6085 235 235 3.18% 3.86%
C 7393 6085 1 1 0.01% 0.02%
D 7393 6085 240 240 3.25% 3.94%

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 15 223 145003 989.88 735 721 145.8
A 12 189 83862 570.41 735 721 145.8
A 15 239 76393 519.16 735 721 145.8
B 4 239 963891 7332.24 716 700 131.4
B 3 64 96560 729.73 716 700 131.4
B 0 229 34365 256.27 716 700 131.4
C 14 234 7911 44.55 709 713 161.6
C 13 61 5149 27.46 709 713 161.6
C 12 4 4212 21.66 709 713 161.6
D 1 52 1552619 9603.99 689 669 161.6
D 2 14 99353 610.69 689 669 161.6
D 2 234 22863 137.34 689 669 161.6

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