ASTROSAT CZTI

Data Quality Report

Orbit 09788

Creation date: 2024-06-27T15:50:40.268473
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/AS1G05_218T01_9000001394_09788cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09788cztM0_level2_quad_clean.evt
Size (bytes)447,523,20071,651,520
Size426.8 MB 68.3 MB
Events in quadrant A3,148,982432,627
Events in quadrant B3,262,443434,917
Events in quadrant C3,052,764427,338
Events in quadrant D3,639,082413,704

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015012
B014916
C015012
D015117

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152031369
B0153671413
C0151701457
D0172141907

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66581281.922499%
B66341291.944528%
C6604861.302241%
D65611772.697759%

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 7711 6987 0 0 0.00% 0.00%
B 7711 6980 1 1 0.01% 0.01%
C 7711 6956 0 0 0.00% 0.00%
D 7710 6939 41 41 0.53% 0.59%

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 13 251 7865 41.74 815 795 169.4
A 0 226 7603 40.19 815 795 169.4
A 12 194 6586 34.19 815 795 169.4
B 0 214 50078 309.65 810 790 159.2
B 0 187 24109 146.5 810 790 159.2
B 12 111 17987 108.04 810 790 159.2
C 13 61 5859 27.82 779 785 182.3
C 14 234 5686 26.87 779 785 182.3
C 8 128 4408 19.87 779 785 182.3
D 2 152 287944 1499.6 773 753 191.5
D 13 104 145148 753.97 773 753 191.5
D 1 52 142584 740.58 773 753 191.5

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