ASTROSAT CZTI

Data Quality Report

Orbit 17182

Creation date: 2024-06-27T17:33:17.215754
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/AS1A05_185T04_9000002548_17182cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17182cztM0_level2_quad_clean.evt
Size (bytes)445,786,56091,229,760
Size425.1 MB 87.0 MB
Events in quadrant A3,028,778595,402
Events in quadrant B3,267,090604,606
Events in quadrant C3,079,297572,587
Events in quadrant D3,701,703554,829

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129992
B0136832
C0129743
D0151362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6233180.288785%
B6233580.930531%
C6232570.914634%
D6232811.299743%

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 7563 6235 0 0 0.00% 0.00%
B 7563 6235 14 14 0.19% 0.22%
C 7562 6234 0 0 0.00% 0.00%
D 7562 6234 61 61 0.81% 0.98%

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 12 189 18660 114.91 776 762 155.8
A 12 96 14597 88.82 776 762 155.8
A 15 174 10543 62.79 776 762 155.8
B 0 189 75186 507.17 782 764 146.7
B 0 197 39880 266.57 782 764 146.7
B 0 219 31953 212.55 782 764 146.7
C 14 238 115379 656.44 751 759 174.6
C 3 233 14788 80.35 751 759 174.6
C 8 128 7590 39.12 751 759 174.6
D 5 222 557482 3078.51 750 730 180.9
D 15 0 131268 721.8 750 730 180.9
D 10 70 85857 470.7 750 730 180.9

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