ASTROSAT CZTI

Data Quality Report

Orbit 19396

Creation date: 2024-06-27T18:02:21.130089
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_208T03_9000002874_19396cztM0_level2.evt modeM0/AS1A05_208T03_9000002874_19396cztM0_level2_quad_clean.evt
Size (bytes)581,276,160105,822,720
Size554.3 MB 100.9 MB
Events in quadrant A3,189,759746,136
Events in quadrant B3,076,998749,187
Events in quadrant C3,092,779708,866
Events in quadrant D7,852,095595,570

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130181
B0126031
C0125531
D0273355

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57851192.057044%
B57851001.728608%
C57851392.402766%
D5784198734.353389%

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 7110 5785 15 15 0.21% 0.26%
B 7110 5785 0 0 0.00% 0.00%
C 7110 5785 0 0 0.00% 0.00%
D 7108 5783 1571 1571 22.10% 27.17%

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 5 16 61075 379.53 797 784 158.9
A 12 96 58555 363.66 797 784 158.9
A 13 254 7192 40.34 797 784 158.9
B 12 111 16967 110.95 780 762 146.1
B 11 111 15005 97.51 780 762 146.1
B 14 111 13154 84.84 780 762 146.1
C 14 238 118818 671.91 758 764 175.7
C 3 233 10792 57.08 758 764 175.7
C 7 247 5422 26.51 758 764 175.7
D 10 66 4273243 25680.78 690 673 166.4
D 1 52 608159 3651.37 690 673 166.4
D 7 238 288735 1731.43 690 673 166.4

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