ASTROSAT CZTI

Data Quality Report

Orbit 43274

Creation date: 2024-06-27T22:50:02.832345
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/AS1A06_006T01_9000005860_43274cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43274cztM0_level2_quad_clean.evt
Size (bytes)315,455,04084,792,960
Size300.8 MB 80.9 MB
Events in quadrant A3,389,245543,808
Events in quadrant B2,343,848586,841
Events in quadrant C2,524,131564,210
Events in quadrant D3,015,433509,298

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131822
B0105912
C0106702
D0125562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51862324.473583%
B5186120.231392%
C5186190.366371%
D51861392.680293%

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 7098 5187 183 183 2.58% 3.53%
B 7098 5187 5 5 0.07% 0.10%
C 7098 5187 16 16 0.23% 0.31%
D 7098 5187 129 129 1.82% 2.49%

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 15 237 635653 5476.61 560 549 116.0
A 10 83 555554 4785.9 560 549 116.0
A 13 248 22995 193.56 560 549 116.0
B 5 172 25989 225.52 570 553 112.8
B 0 189 20776 179.3 570 553 112.8
B 4 67 19113 164.55 570 553 112.8
C 15 214 220094 1650.24 564 568 133.0
C 14 254 93905 701.64 564 568 133.0
C 3 233 7038 48.64 564 568 133.0
D 12 233 213938 1536.93 559 543 138.8
D 1 52 209431 1504.47 559 543 138.8
D 2 249 185506 1332.16 559 543 138.8

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