ASTROSAT CZTI

Data Quality Report

Orbit 33427

Creation date: 2024-06-27T20:48:43.239863
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/AS1A11_046T04_9000004792_33427cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33427cztM0_level2_quad_clean.evt
Size (bytes)513,239,04092,168,640
Size489.5 MB 87.9 MB
Events in quadrant A2,822,485627,576
Events in quadrant B3,992,424601,889
Events in quadrant C3,106,984605,206
Events in quadrant D5,244,958567,441

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113423
B0154772
C0125412
D0193562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5565100.179695%
B55653856.918239%
C5565971.743037%
D55652915.229111%

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 7118 5566 0 0 0.00% 0.00%
B 7117 5565 301 301 4.23% 5.41%
C 7118 5566 86 86 1.21% 1.55%
D 7118 5566 269 269 3.78% 4.83%

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 47 344245 2707.28 637 623 126.9
A 13 6 10729 79.62 637 623 126.9
A 13 254 9555 70.37 637 623 126.9
B 5 172 1105282 9435.83 613 598 117.1
B 0 213 168502 1434.18 613 598 117.1
B 5 255 115444 980.98 613 598 117.1
C 15 214 244260 1729.77 609 614 140.9
C 0 10 200771 1421.02 609 614 140.9
C 14 254 112897 797.16 609 614 140.9
D 8 195 1556423 10482.53 604 587 148.4
D 2 250 515676 3470.44 604 587 148.4
D 13 153 180709 1213.58 604 587 148.4

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