ASTROSAT CZTI

Data Quality Report

Orbit 03428

Creation date: 2024-06-27T14:28:51.811245
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/AS1G05_167T01_9000000456_03428cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03428cztM0_level2_quad_clean.evt
Size (bytes)573,621,12069,154,560
Size547.0 MB 66.0 MB
Events in quadrant A3,475,628422,181
Events in quadrant B4,255,687420,959
Events in quadrant C6,061,618403,307
Events in quadrant D3,151,565406,861

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144543
B0169042
C0222572
D0136802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6320741.170886%
B63201882.974684%
C6320101516.060127%
D6320751.186709%

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 7545 6321 6 6 0.08% 0.09%
B 7545 6321 83 83 1.10% 1.31%
C 7545 6321 688 688 9.12% 10.88%
D 7545 6321 19 19 0.25% 0.30%

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 15 223919 1381.88 793 779 161.5
A 14 249 126610 779.26 793 779 161.5
A 0 118 40436 245.59 793 779 161.5
B 15 204 558116 3619.2 801 785 154.0
B 14 167 473395 3069.04 801 785 154.0
B 6 203 47619 304.13 801 785 154.0
C 7 220 3111906 18671.91 721 729 166.6
C 15 208 58103 344.33 721 729 166.6
C 6 80 32085 188.18 721 729 166.6
D 13 223 75482 401.89 772 750 186.0
D 14 34 46981 248.62 772 750 186.0
D 12 246 35272 185.65 772 750 186.0

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