ASTROSAT CZTI

Data Quality Report

Orbit 29205

Creation date: 2024-06-27T20:01:28.532875
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/AS1A10_053T41_9000004194_29205cztM0_level2.evt modeM0/AS1A10_053T41_9000004194_29205cztM0_level2_quad_clean.evt
Size (bytes)769,636,80067,003,200
Size734.0 MB 63.9 MB
Events in quadrant A3,342,507412,314
Events in quadrant B3,821,781414,438
Events in quadrant C10,379,398347,067
Events in quadrant D5,298,559373,138

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141482
B0155292
C0357242
D0204192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6906460.666087%
B69061482.143064%
C6906230833.420214%
D69063204.633652%

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 7801 6907 0 0 0.00% 0.00%
B 7801 6907 68 68 0.87% 0.98%
C 7801 6907 1524 1524 19.54% 22.06%
D 7801 6907 211 211 2.70% 3.05%

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 0 13 34044 192.12 856 837 172.8
A 13 254 13154 71.26 856 837 172.8
A 3 137 8455 44.07 856 837 172.8
B 10 246 250070 1511.91 852 829 164.9
B 0 229 100650 605.52 852 829 164.9
B 10 245 65010 389.33 852 829 164.9
C 3 233 7304896 41441.04 754 760 176.3
C 14 238 120188 677.59 754 760 176.3
C 2 114 15701 84.77 754 760 176.3
D 1 52 1264722 6485.1 812 788 194.9
D 8 195 715873 3669.02 812 788 194.9
D 7 80 80024 406.55 812 788 194.9

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