ASTROSAT CZTI

Data Quality Report

Orbit 49732

Creation date: 2024-12-10T10:18:12.861953
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_233T01_9000006438_49732cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49732cztM0_level2_quad_clean.evt
Size (bytes)3,020,774,40090,515,520
Size2.8 GB 86.3 MB
Events in quadrant A42,225,80432,285
Events in quadrant B11,498,4771,548,348
Events in quadrant C19,452,444515
Events in quadrant D37,373,35125,535

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03320
B03320
C03320
D03320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01367792
B0454122
C0694622
D01222832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A164291620198.612210%
B164299325.672895%
C164301642799.981741%
D164301621298.673159%

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 16928 16430 15275 15275 90.24% 92.97%
B 16929 16433 685 685 4.05% 4.17%
C 16929 16431 898 898 5.30% 5.47%
D 16929 16431 12378 12378 73.12% 75.33%

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 12780041 56634.72 726 697 225.6
A 0 99 9118386 40407.22 726 697 225.6
A 12 50 3539566 15683.34 726 697 225.6
B 10 128 1713075 4781.14 1692 1641 358.0
B 7 0 430887 1199.16 1692 1641 358.0
B 10 45 365004 1015.11 1692 1641 358.0
C 15 180 4377190 59417.61 87 78 73.7
C 15 190 3744297 50826.33 87 78 73.7
C 15 181 1696125 23023.18 87 78 73.7
D 7 61 5652127 29952.79 412 384 188.7
D 15 40 3825431 20271.77 412 384 188.7
D 15 168 3753620 19891.19 412 384 188.7

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