ASTROSAT CZTI

Data Quality Report

Orbit 32899

Creation date: 2024-06-27T20:43:12.406606
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/AS1A11_005T05_9000004744_32899cztM0_level2.evt modeM0/AS1A11_005T05_9000004744_32899cztM0_level2_quad_clean.evt
Size (bytes)447,367,68075,096,000
Size426.6 MB 71.6 MB
Events in quadrant A2,383,376491,850
Events in quadrant B2,752,712493,842
Events in quadrant C2,653,881496,011
Events in quadrant D5,420,966443,232

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104372
B0114832
C0111342
D0197692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4974140.281464%
B4974721.447527%
C4974611.226377%
D49744489.006836%

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 6767 4975 4 4 0.06% 0.08%
B 6767 4975 46 46 0.68% 0.92%
C 6767 4975 48 48 0.71% 0.96%
D 6767 4975 364 364 5.38% 7.32%

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 7 16 35707 300.13 589 578 117.0
A 14 63 30266 253.64 589 578 117.0
A 9 143 22027 183.25 589 578 117.0
B 5 172 242480 2176.89 588 573 111.1
B 0 199 43171 383.33 588 573 111.1
B 0 230 40067 355.4 588 573 111.1
C 0 10 223346 1667.53 579 583 133.6
C 14 67 106107 789.92 579 583 133.6
C 0 207 21595 157.29 579 583 133.6
D 8 195 1166836 8344.17 558 544 139.8
D 2 250 803504 5744.73 558 544 139.8
D 10 203 533792 3815.09 558 544 139.8

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