ASTROSAT CZTI

Data Quality Report

Orbit 42509

Creation date: 2024-06-27T22:41:01.962161
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_9000005806_42509cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42509cztM0_level2_quad_clean.evt
Size (bytes)482,163,84090,547,200
Size459.8 MB 86.4 MB
Events in quadrant A3,139,046639,552
Events in quadrant B2,861,145633,344
Events in quadrant C7,825,989486,841
Events in quadrant D3,562,346567,894

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129472
B0126892
C0272807
D0149012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5915120.202874%
B5915190.321217%
C5914142124.027731%
D59142013.398715%

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 7228 5916 4 4 0.06% 0.07%
B 7228 5916 12 12 0.17% 0.20%
C 7227 5914 1414 1414 19.57% 23.91%
D 7227 5915 158 158 2.19% 2.67%

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 646603 4987.24 623 609 129.5
A 12 189 49477 377.27 623 609 129.5
A 13 6 10820 78.83 623 609 129.5
B 0 229 245785 2056.98 614 597 119.2
B 5 255 71908 598.26 614 597 119.2
B 0 245 61628 512.01 614 597 119.2
C 0 239 5008399 38772.11 554 556 129.2
C 9 54 398387 3080.12 554 556 129.2
C 15 214 241658 1866.68 554 556 129.2
D 12 233 463480 3136.78 605 588 147.6
D 10 118 230247 1556.28 605 588 147.6
D 13 249 226543 1531.18 605 588 147.6

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