ASTROSAT CZTI

Data Quality Report

Orbit 11724

Creation date: 2024-06-27T16:17:26.096539
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/AS1G08_006T01_9000001728_11724cztM0_level2.evt modeM0/AS1G08_006T01_9000001728_11724cztM0_level2_quad_clean.evt
Size (bytes)517,092,480110,355,840
Size493.1 MB 105.2 MB
Events in quadrant A5,210,999718,649
Events in quadrant B3,721,023749,876
Events in quadrant C2,933,027748,764
Events in quadrant D3,391,284708,526

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196522
B0146201
C0123341
D0136111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59633225.399966%
B59632233.739728%
C5963570.955895%
D5963831.391917%

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 7269 5965 130 130 1.79% 2.18%
B 7269 5965 72 72 0.99% 1.21%
C 7269 5965 0 0 0.00% 0.00%
D 7269 5965 28 28 0.39% 0.47%

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 8 15 1964112 13204.35 750 735 148.7
A 1 162 119999 802.09 750 735 148.7
A 1 178 67533 449.24 750 735 148.7
B 4 239 528872 3808.2 758 741 138.7
B 15 204 91340 653.28 758 741 138.7
B 10 245 85131 608.51 758 741 138.7
C 4 222 5945 30.71 749 754 169.0
C 13 61 5656 29.0 749 754 169.0
C 14 234 4068 19.61 749 754 169.0
D 8 195 322373 1875.06 740 721 171.5
D 13 249 85319 493.16 740 721 171.5
D 13 137 40973 234.65 740 721 171.5

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