ASTROSAT CZTI

Data Quality Report

Orbit 30928

Creation date: 2024-06-27T20:21:16.662606
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/AS1C06_007T01_9000004470_30928cztM0_level2.evt modeM0/AS1C06_007T01_9000004470_30928cztM0_level2_quad_clean.evt
Size (bytes)573,788,16084,343,680
Size547.2 MB 80.4 MB
Events in quadrant A2,901,659559,339
Events in quadrant B5,278,070550,982
Events in quadrant C3,459,069512,712
Events in quadrant D5,315,513494,620

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127951
B0201451
C0143321
D0201081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6242300.480615%
B6243991.585776%
C62434497.192055%
D62425669.067607%

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 7237 6242 0 0 0.00% 0.00%
B 7238 6243 6 6 0.08% 0.10%
C 7238 6243 2 2 0.03% 0.03%
D 7237 6242 458 458 6.33% 7.34%

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 13 254 12823 79.95 750 734 151.2
A 3 137 7164 42.52 750 734 151.2
A 0 226 6377 37.32 750 734 151.2
B 6 159 2008909 14185.44 744 727 141.6
B 0 183 89732 628.72 744 727 141.6
B 5 255 55668 388.09 744 727 141.6
C 3 233 262764 1588.47 701 706 165.0
C 14 238 224601 1357.15 701 706 165.0
C 14 254 165650 999.81 701 706 165.0
D 12 233 810741 4729.1 708 687 171.3
D 8 195 370024 2156.19 708 687 171.3
D 13 174 339897 1980.31 708 687 171.3

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