ASTROSAT CZTI

Data Quality Report

Orbit 44160

Creation date: 2024-06-27T22:59:56.185111
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_080T06_9000005954_44160cztM0_level2.fits modeM0/AS1A13_080T06_9000005954_44160cztM0_level2_quad_clean.evt
Size (bytes)668,301,120111,378,240
Size637.3 MB 106.2 MB
Events in quadrant A9,317,924645,985
Events in quadrant B5,458,022781,940
Events in quadrant C4,253,537738,682
Events in quadrant D5,123,436679,687

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0332310
B0214010
C0182910
D0203720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7552162921.570445%
B75524806.355932%
C75523684.872881%
D75523224.263771%

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 7552 7552 1079 1079 14.29% 14.29%
B 7552 7552 306 306 4.05% 4.05%
C 7552 7552 260 260 3.44% 3.44%
D 7552 7552 267 267 3.54% 3.54%

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 4924119 31457.05 740 723 156.5
A 10 83 1342847 8575.23 740 723 156.5
A 13 248 82358 521.59 740 723 156.5
B 15 219 724018 4687.39 797 772 154.3
B 0 219 495073 3203.59 797 772 154.3
B 5 172 399471 2583.99 797 772 154.3
C 15 158 978661 5325.0 782 785 183.6
C 14 254 175730 952.66 782 785 183.6
C 4 254 13789 70.81 782 785 183.6
D 4 235 425984 2158.71 782 756 197.0
D 13 171 329836 1670.61 782 756 197.0
D 1 47 152408 769.88 782 756 197.0

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