ASTROSAT CZTI

Data Quality Report

Orbit 43186

Creation date: 2024-06-27T22:49:02.922055
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/AS1A09_036T17_9000005858_43186cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43186cztM0_level2_quad_clean.evt
Size (bytes)395,069,76087,353,280
Size376.8 MB 83.3 MB
Events in quadrant A5,212,315521,133
Events in quadrant B3,418,344615,174
Events in quadrant C2,607,407593,835
Events in quadrant D2,972,074542,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190102
B0137602
C0109692
D0124172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A532281515.313792%
B53221142.142052%
C532280.150319%
D5322861.615934%

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 7415 5323 694 694 9.36% 13.04%
B 7415 5323 70 70 0.94% 1.32%
C 7415 5323 1 1 0.01% 0.02%
D 7415 5323 74 74 1.00% 1.39%

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 15 222 1069171 9374.48 556 545 114.0
A 15 237 982326 8612.64 556 545 114.0
A 10 83 528439 4630.93 556 545 114.0
B 0 186 944434 8064.25 593 576 117.0
B 5 172 50795 429.07 593 576 117.0
B 15 85 46770 394.68 593 576 117.0
C 15 214 225976 1653.42 584 590 136.3
C 14 254 87733 639.28 584 590 136.3
C 8 79 8943 61.28 584 590 136.3
D 1 52 535271 3658.95 588 572 146.1
D 13 249 82491 560.57 588 572 146.1
D 13 84 29008 194.59 588 572 146.1

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