ASTROSAT CZTI

Data Quality Report

Orbit 43732

Creation date: 2024-06-27T22:55:06.868379
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/AS1A13_003T01_9000005902_43732cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43732cztM0_level2_quad_clean.evt
Size (bytes)560,698,560106,588,800
Size534.7 MB 101.7 MB
Events in quadrant A6,415,050676,052
Events in quadrant B3,866,032763,638
Events in quadrant C3,909,665731,578
Events in quadrant D6,050,928594,676

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234732
B0158292
C0160892
D0225212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A661882112.405561%
B66192533.822330%
C66192243.384197%
D661991613.838948%

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 8623 6620 587 587 6.81% 8.87%
B 8624 6621 97 97 1.12% 1.47%
C 8624 6621 143 143 1.66% 2.16%
D 8624 6621 711 711 8.24% 10.74%

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 15 223 2085194 13539.3 748 733 154.0
A 10 83 925943 6009.56 748 733 154.0
A 13 248 415805 2696.04 748 733 154.0
B 5 235 522953 3483.65 772 751 149.9
B 12 3 144239 957.22 772 751 149.9
B 5 172 73190 483.25 772 751 149.9
C 15 158 464441 2604.08 753 759 178.1
C 15 157 320749 1797.09 753 759 178.1
C 3 233 50881 281.49 753 759 178.1
D 5 235 1426427 7841.6 706 683 181.8
D 7 80 745386 4095.87 706 683 181.8
D 13 249 311987 1712.17 706 683 181.8

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