ASTROSAT CZTI

Data Quality Report

Orbit 33310

Creation date: 2024-06-27T20:47:21.055716
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/AS1T04_072T01_9000004780_33310cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33310cztM0_level2_quad_clean.evt
Size (bytes)495,253,44089,406,720
Size472.3 MB 85.3 MB
Events in quadrant A2,638,205618,748
Events in quadrant B4,268,119581,375
Events in quadrant C4,132,547577,772
Events in quadrant D3,618,672576,190

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107602
B0159631
C0155481
D0143531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5041220.436421%
B504151910.295576%
C50412224.403888%
D5041741.467963%

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 7012 5042 8 8 0.11% 0.16%
B 7012 5042 378 378 5.39% 7.50%
C 7012 5042 173 173 2.47% 3.43%
D 7012 5042 54 54 0.77% 1.07%

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 15 169 211115 1684.63 620 608 125.0
A 15 47 23385 182.28 620 608 125.0
A 13 6 8953 66.78 620 608 125.0
B 5 172 1512586 13637.14 587 574 110.9
B 0 219 216498 1947.46 587 574 110.9
B 5 200 36409 323.2 587 574 110.9
C 10 49 1078585 8075.05 585 590 133.5
C 1 23 308880 2309.34 585 590 133.5
C 15 214 236584 1767.78 585 590 133.5
D 8 195 694676 4478.1 596 585 155.0
D 2 250 155557 999.84 596 585 155.0
D 12 218 92651 593.99 596 585 155.0

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