ASTROSAT CZTI

Data Quality Report

Orbit 15310

Creation date: 2024-06-27T17:06:42.668560
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/AS1T02_073T01_9000002260_15310cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15310cztM0_level2_quad_clean.evt
Size (bytes)460,422,72086,817,600
Size439.1 MB 82.8 MB
Events in quadrant A3,235,220554,704
Events in quadrant B3,335,273559,040
Events in quadrant C3,332,823544,335
Events in quadrant D3,603,902522,555

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137893
B0140542
C0139772
D0149662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6424831.292030%
B6424901.400996%
C6424721.120797%
D64241161.805729%

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 7570 6425 1 1 0.01% 0.02%
B 7570 6425 3 3 0.04% 0.05%
C 7570 6425 0 0 0.00% 0.00%
D 7570 6425 56 56 0.74% 0.87%

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 9 143 14866 83.77 836 818 167.7
A 0 226 7447 39.53 836 818 167.7
A 15 239 6762 35.44 836 818 167.7
B 10 16 99678 627.69 826 806 157.5
B 12 111 18906 114.91 826 806 157.5
B 11 111 16140 97.35 826 806 157.5
C 3 233 171674 922.47 807 812 185.2
C 7 247 17672 91.02 807 812 185.2
C 13 61 5619 25.95 807 812 185.2
D 13 122 317518 1608.09 809 785 197.0
D 2 33 203603 1029.73 809 785 197.0
D 2 234 23825 116.98 809 785 197.0

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