ASTROSAT CZTI

Data Quality Report

Orbit 06224

Creation date: 2024-06-27T15:04:22.893163
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/AS1A02_046T01_9000000814_06224cztM0_level2.evt modeM0/AS1A02_046T01_9000000814_06224cztM0_level2_quad_clean.evt
Size (bytes)428,351,040118,595,520
Size408.5 MB 113.1 MB
Events in quadrant A3,477,603797,686
Events in quadrant B2,998,364808,432
Events in quadrant C2,806,250799,646
Events in quadrant D3,282,654767,157

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143352
B0128001
C0123121
D0135021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60061412.347652%
B60061171.948052%
C6006861.431901%
D60061011.681652%

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 7291 6006 3 3 0.04% 0.05%
B 7291 6006 13 13 0.18% 0.22%
C 7291 6006 0 0 0.00% 0.00%
D 7291 6006 11 11 0.15% 0.18%

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 13 34 579688 3937.82 730 714 147.0
A 8 15 41031 274.21 730 714 147.0
A 0 31 15635 101.48 730 714 147.0
B 15 204 43391 313.36 733 716 136.2
B 15 54 32070 230.23 733 716 136.2
B 0 219 29242 209.46 733 716 136.2
C 13 61 5791 30.88 718 723 164.1
C 8 222 2595 11.41 718 723 164.1
C 1 16 2129 8.57 718 723 164.1
D 2 63 400643 2312.44 718 696 173.0
D 5 97 52974 302.26 718 696 173.0
D 5 239 45886 261.28 718 696 173.0

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