ASTROSAT CZTI

Data Quality Report

Orbit 38606

Creation date: 2024-06-27T21:54:01.823134
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/AS1A12_052T04_9000005388_38606cztM0_level2.fits modeM0/AS1A12_052T04_9000005388_38606cztM0_level2_quad_clean.evt
Size (bytes)374,739,84099,362,880
Size357.4 MB 94.8 MB
Events in quadrant A2,962,708696,297
Events in quadrant B3,532,516688,835
Events in quadrant C2,972,156681,610
Events in quadrant D4,013,385590,161

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118133
B0135862
C0119392
D0151152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5024140.278662%
B50242725.414013%
C5024601.194268%
D50244178.300159%

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 7088 5025 7 7 0.10% 0.14%
B 7088 5025 160 160 2.26% 3.18%
C 7088 5025 47 47 0.66% 0.94%
D 7088 5025 370 370 5.22% 7.36%

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 10 83 414781 3236.7 641 631 128.0
A 12 189 31411 240.55 641 631 128.0
A 13 248 23862 181.56 641 631 128.0
B 5 184 785324 6774.11 623 609 115.8
B 5 200 63181 540.16 623 609 115.8
B 5 172 58677 501.28 623 609 115.8
C 15 214 207995 1465.59 623 629 141.5
C 15 159 159626 1123.74 623 629 141.5
C 14 254 122554 861.72 623 629 141.5
D 13 249 436336 3033.62 602 588 143.6
D 1 47 384657 2673.84 602 588 143.6
D 12 235 343526 2387.49 602 588 143.6

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