ASTROSAT CZTI

Data Quality Report

Orbit 41590

Creation date: 2024-06-27T22:30:27.984785
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_9000005678_41590cztM0_level2.fits modeM0/AS1C07_001T10_9000005678_41590cztM0_level2_quad_clean.evt
Size (bytes)325,990,08091,906,560
Size310.9 MB 87.6 MB
Events in quadrant A2,853,594628,092
Events in quadrant B2,816,651641,567
Events in quadrant C2,918,261597,712
Events in quadrant D3,088,582564,981

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116052
B0118492
C0116962
D0126472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5004120.239808%
B5004250.499600%
C50042044.076739%
D50041342.677858%

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 7066 5005 7 7 0.10% 0.14%
B 7066 5005 6 6 0.08% 0.12%
C 7066 5005 187 187 2.65% 3.74%
D 7066 5005 111 111 1.57% 2.22%

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 546353 4696.64 573 560 116.2
A 7 3 54084 460.58 573 560 116.2
A 2 79 17177 142.99 573 560 116.2
B 0 186 386106 3604.22 573 559 107.0
B 0 189 52311 483.8 573 559 107.0
B 0 245 31874 292.74 573 559 107.0
C 0 10 513990 4018.09 558 564 127.8
C 15 214 215036 1678.47 558 564 127.8
C 14 67 5393 37.79 558 564 127.8
D 13 249 357605 2560.34 568 554 139.5
D 2 249 164347 1174.52 568 554 139.5
D 12 218 102168 728.65 568 554 139.5

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