ASTROSAT CZTI

Data Quality Report

Orbit 49713

Creation date: 2024-12-10T14:09:33.917940
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_49713cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49713cztM0_level2_quad_clean.evt
Size (bytes)1,330,067,52052,188,480
Size1.2 GB 49.8 MB
Events in quadrant A17,598,282278,504
Events in quadrant B4,728,305703,171
Events in quadrant C8,813,3925,297
Events in quadrant D17,558,59599,972

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0569850
B0188660
C0311070
D0568820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6929678597.921778%
B69302503.607504%
C69306930100.000000%
D6929692699.956704%

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 6929 6929 6710 6710 96.84% 96.84%
B 6930 6930 191 191 2.76% 2.76%
C 6930 6930 140 140 2.02% 2.02%
D 6929 6929 6596 6596 95.19% 95.19%

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 5071792 52728.27 341 330 96.2
A 0 98 2345086 24378.56 341 330 96.2
A 3 130 2176923 22630.16 341 330 96.2
B 10 251 513050 3246.28 743 718 157.8
B 5 172 202850 1280.76 743 718 157.8
B 3 22 197739 1248.38 743 718 157.8
C 15 190 2253130 116686.87 28 26 19.3
C 15 180 1151074 59612.07 28 26 19.3
C 0 161 960023 49717.66 28 26 19.3
D 15 122 7031505 83022.56 148 135 84.7
D 15 40 2821217 33309.79 148 135 84.7
D 15 168 1123291 13261.61 148 135 84.7

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