ASTROSAT CZTI

Data Quality Report

Orbit 47724

Creation date: 2024-07-25T19:42:28.200864
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/AS1T05_213T01_9000006344_47724cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47724cztM0_level2_quad_clean.evt
Size (bytes)539,876,160110,404,800
Size514.9 MB 105.3 MB
Events in quadrant A6,990,287730,075
Events in quadrant B5,195,929715,049
Events in quadrant C3,092,634741,871
Events in quadrant D4,172,527676,464

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261811
B0201211
C0144371
D0172951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68792663.866841%
B68795758.358773%
C6880510.741279%
D68801522.209302%

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 7664 6880 10 10 0.13% 0.15%
B 7664 6880 276 276 3.60% 4.01%
C 7665 6881 26 26 0.34% 0.38%
D 7665 6881 56 56 0.73% 0.81%

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 10 83 3976644 25509.16 752 734 155.9
A 13 248 51608 326.4 752 734 155.9
A 9 191 49971 315.9 752 734 155.9
B 5 255 1866567 13122.27 731 710 142.2
B 0 200 287591 2017.58 731 710 142.2
B 5 32 45660 316.12 731 710 142.2
C 14 254 165882 950.64 743 743 173.7
C 6 247 14210 77.52 743 743 173.7
C 12 2 8128 42.51 743 743 173.7
D 2 249 385071 2055.79 747 722 187.0
D 2 165 380131 2029.36 747 722 187.0
D 12 218 146478 779.61 747 722 187.0

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