ASTROSAT CZTI

Data Quality Report

Orbit 42338

Creation date: 2024-06-27T22:39:09.811617
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/AS1C07_001T10_9000005796_42338cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42338cztM0_level2_quad_clean.evt
Size (bytes)328,066,56092,724,480
Size312.9 MB 88.4 MB
Events in quadrant A3,125,767612,262
Events in quadrant B2,622,044624,933
Events in quadrant C2,680,359608,777
Events in quadrant D3,264,413557,146

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126182
B0119162
C0117152
D0138272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5792200.345304%
B5792170.293508%
C579220.034530%
D57931111.916106%

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 8717 5794 5 5 0.06% 0.09%
B 8717 5794 7 7 0.08% 0.12%
C 8717 5794 0 0 0.00% 0.00%
D 8718 5795 104 104 1.19% 1.79%

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 619988 4825.57 625 611 128.4
A 13 248 37078 284.11 625 611 128.4
A 15 252 31769 242.75 625 611 128.4
B 5 172 46789 385.82 620 603 119.7
B 0 230 35577 292.16 620 603 119.7
B 0 245 23652 192.54 620 603 119.7
C 15 214 244553 1710.17 610 614 142.6
C 15 111 38303 264.22 610 614 142.6
C 7 220 6899 44.06 610 614 142.6
D 12 6 322813 2172.83 609 592 148.3
D 1 52 290238 1953.17 609 592 148.3
D 12 233 98654 661.26 609 592 148.3

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