ASTROSAT CZTI

Data Quality Report

Orbit 13581

Creation date: 2024-06-27T16:43:00.453302
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_047T01_9000002002_13581cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13581cztM0_level2_quad_clean.evt
Size (bytes)526,014,720100,287,360
Size501.6 MB 95.6 MB
Events in quadrant A3,521,323641,960
Events in quadrant B4,255,231641,796
Events in quadrant C3,725,250639,012
Events in quadrant D3,931,259604,195

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153102
B0173571
C0156501
D0167641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7329690.941465%
B73292653.615773%
C7329510.695866%
D73291922.619730%

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 7490 7332 0 0 0.00% 0.00%
B 7490 7330 155 155 2.07% 2.11%
C 7490 7331 0 0 0.00% 0.00%
D 7490 7331 156 156 2.08% 2.13%

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 1 162 38943 207.77 891 871 183.2
A 11 29 24570 129.34 891 871 183.2
A 1 178 12735 64.75 891 871 183.2
B 0 182 589197 3473.21 884 861 169.4
B 0 190 102426 599.58 884 861 169.4
B 0 214 32051 184.13 884 861 169.4
C 3 233 362678 1823.56 857 862 198.4
C 0 207 9046 41.25 857 862 198.4
C 13 61 6252 27.17 857 862 198.4
D 1 20 346027 1651.1 853 828 209.1
D 5 222 85621 405.57 853 828 209.1
D 13 249 68984 325.99 853 828 209.1

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