ASTROSAT CZTI

Data Quality Report

Orbit 05991

Creation date: 2024-06-27T15:01:33.242758
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/AS1G06_086T01_9000000774_05991cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05991cztM0_level2_quad_clean.evt
Size (bytes)503,576,640122,356,800
Size480.2 MB 116.7 MB
Events in quadrant A3,153,419818,630
Events in quadrant B3,241,757855,364
Events in quadrant C5,323,040804,404
Events in quadrant D3,101,404783,739

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136773
B0140244
C0203312
D0138982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6361580.911806%
B6360430.676101%
C63613014.731960%
D6361330.518786%

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 7636 6362 31 31 0.41% 0.49%
B 7636 6362 4 4 0.05% 0.06%
C 7636 6362 181 181 2.37% 2.85%
D 7636 6362 7 7 0.09% 0.11%

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 14 238 118887 794.66 737 723 148.7
A 15 234 99841 666.57 737 723 148.7
A 13 251 36201 238.59 737 723 148.7
B 15 204 105106 727.22 763 746 143.5
B 0 219 54405 373.92 763 746 143.5
B 4 81 38928 266.07 763 746 143.5
C 1 241 2474044 14863.17 727 731 166.4
C 14 206 8553 47.01 727 731 166.4
C 13 61 5774 30.31 727 731 166.4
D 1 239 269397 1523.82 726 703 176.3
D 2 14 39576 220.46 726 703 176.3
D 13 172 20584 112.75 726 703 176.3

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