ASTROSAT CZTI

Data Quality Report

Orbit 07583

Creation date: 2024-06-27T15:21:17.449252
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_024T01_9000001044_07583cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07583cztM0_level2_quad_clean.evt
Size (bytes)479,217,60064,100,160
Size457.0 MB 61.1 MB
Events in quadrant A3,380,389375,004
Events in quadrant B3,391,107381,366
Events in quadrant C3,356,408375,204
Events in quadrant D3,947,648359,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139763
B0140122
C0140102
D0159322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6443851.319261%
B6443821.272699%
C6443630.977805%
D64431742.700605%

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 7738 6443 0 0 0.00% 0.00%
B 7738 6443 0 0 0.00% 0.00%
C 7738 6443 0 0 0.00% 0.00%
D 7738 6443 62 62 0.80% 0.96%

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 15 239 41947 238.78 865 850 172.1
A 3 1 10766 57.61 865 850 172.1
A 0 226 8198 42.69 865 850 172.1
B 0 214 31970 192.09 861 843 162.0
B 12 111 16197 94.75 861 843 162.0
B 11 111 13294 76.84 861 843 162.0
C 9 68 48334 248.15 839 846 191.4
C 1 16 22047 110.79 839 846 191.4
C 8 229 16246 80.47 839 846 191.4
D 2 152 470776 2292.44 839 815 205.0
D 2 14 148090 718.4 839 815 205.0
D 5 233 82983 400.81 839 815 205.0

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