ASTROSAT CZTI

Data Quality Report

Orbit 38312

Creation date: 2024-06-27T21:51:07.892083
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_001T12_9000005372_38312cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38312cztM0_level2_quad_clean.evt
Size (bytes)537,975,36084,476,160
Size513.1 MB 80.6 MB
Events in quadrant A2,965,628624,356
Events in quadrant B2,693,761632,699
Events in quadrant C2,715,440598,502
Events in quadrant D11,110,518315,722

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121703
B0116842
C0114612
D0367962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5516180.326323%
B5516140.253807%
C5516160.290065%
D5516284951.649746%

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 7159 5517 7 7 0.10% 0.13%
B 7159 5517 5 5 0.07% 0.09%
C 7159 5517 13 13 0.18% 0.24%
D 7159 5517 2998 2998 41.88% 54.34%

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 409907 3308.64 613 600 123.7
A 12 189 120370 968.16 613 600 123.7
A 13 248 32169 255.19 613 600 123.7
B 0 229 180747 1550.14 607 589 116.2
B 0 183 55494 472.42 607 589 116.2
B 15 32 33635 284.34 607 589 116.2
C 15 214 236648 1712.38 594 598 137.8
C 14 254 74105 533.24 594 598 137.8
C 5 250 46978 336.45 594 598 137.8
D 10 203 6191875 48869.2 520 504 126.7
D 2 16 1321394 10425.93 520 504 126.7
D 12 235 1159259 9146.18 520 504 126.7

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