ASTROSAT CZTI

Data Quality Report

Orbit 47329

Creation date: 2024-06-29T06:23:57.991432
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_037T01_9000006318_47329cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47329cztM0_level2_quad_clean.evt
Size (bytes)564,353,280105,396,480
Size538.2 MB 100.5 MB
Events in quadrant A7,820,694676,335
Events in quadrant B3,040,825778,769
Events in quadrant C4,035,464698,499
Events in quadrant D5,501,217594,816

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279002
B0134872
C0163412
D0207172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63516269.856715%
B6351500.787278%
C63513745.888836%
D635187013.698630%

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 7536 6352 326 326 4.33% 5.13%
B 7536 6352 1 1 0.01% 0.02%
C 7536 6352 271 271 3.60% 4.27%
D 7535 6351 592 592 7.86% 9.32%

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 3436830 23058.4 714 701 149.0
A 15 235 1183852 7939.62 714 701 149.0
A 9 191 414990 2780.12 714 701 149.0
B 0 183 29310 195.76 740 717 146.1
B 0 198 20255 133.76 740 717 146.1
B 12 111 18317 120.49 740 717 146.1
C 12 2 1202965 7184.83 711 713 167.3
C 3 233 50356 296.67 711 713 167.3
C 12 249 10028 55.66 711 713 167.3
D 12 2 2094568 12316.61 672 651 170.0
D 10 204 365727 2147.41 672 651 170.0
D 2 249 117018 684.48 672 651 170.0

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