ASTROSAT CZTI

Data Quality Report

Orbit 10386

Creation date: 2024-06-27T15:58:43.682763
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/AS1A03_073T01_9000001498_10386cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10386cztM0_level2_quad_clean.evt
Size (bytes)1,385,138,880237,991,680
Size1.3 GB 227.0 MB
Events in quadrant A8,730,2171,497,838
Events in quadrant B9,711,0201,507,469
Events in quadrant C8,133,8751,514,058
Events in quadrant D14,128,9141,417,878

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0387737
B04132310
C0374476
D05477013

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A184451430.775278%
B184442861.550640%
C18445280.151803%
D184436563.556905%

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 20321 18449 71 71 0.35% 0.38%
B 20321 18449 145 145 0.71% 0.79%
C 20321 18449 5 5 0.02% 0.03%
D 20321 18448 564 564 2.78% 3.06%

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 5 16 436505 1008.42 2128 2083 430.8
A 8 15 45284 100.28 2128 2083 430.8
A 15 174 30075 64.98 2128 2083 430.8
B 4 239 1008368 2481.34 2137 2086 405.5
B 0 214 116588 282.34 2137 2086 405.5
B 11 51 108169 261.58 2137 2086 405.5
C 14 234 52450 105.33 2066 2078 478.2
C 13 61 15501 28.07 2066 2078 478.2
C 8 128 12636 22.08 2066 2078 478.2
D 1 20 1987444 4042.74 2032 1975 491.1
D 8 195 1739145 3537.16 2032 1975 491.1
D 1 52 1165592 2369.31 2032 1975 491.1

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