ASTROSAT CZTI

Data Quality Report

Orbit 49607

Creation date: 2024-11-30T09:58:07.541802
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/AS1T05_233T01_9000006438_49607cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49607cztM0_level2_quad_clean.evt
Size (bytes)1,191,124,80051,491,520
Size1.1 GB 49.1 MB
Events in quadrant A17,054,534184,253
Events in quadrant B5,649,138694,017
Events in quadrant C4,667,0115,573
Events in quadrant D16,213,847209,829

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0551821
B0211071
C0186391
D0526467

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65326532100.000000%
B653276111.650337%
C65336533100.000000%
D6532606792.881200%

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 7612 6533 6342 6342 83.32% 97.08%
B 7612 6532 495 495 6.50% 7.58%
C 7612 6531 218 218 2.86% 3.34%
D 7612 6532 5779 5779 75.92% 88.47%

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 0 99 4212455 38742.78 230 214 108.7
A 10 83 3304073 30387.78 230 214 108.7
A 0 98 2080877 19137.24 230 214 108.7
B 4 206 722903 4842.71 702 682 149.1
B 5 172 607321 4067.7 702 682 149.1
B 3 232 377723 2528.18 702 682 149.1
C 15 181 2091055 104290.3 25 23 20.1
C 15 180 679998 33913.78 25 23 20.1
C 15 190 251813 12558.04 25 23 20.1
D 15 40 3800564 32149.31 277 260 118.2
D 15 184 2644983 22373.48 277 260 118.2
D 15 74 1219926 10317.97 277 260 118.2

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