ASTROSAT CZTI

Data Quality Report

Orbit 46549

Creation date: 2024-06-27T23:24:36.068059
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_091T08_9000006228_46549cztM0_level2.fits modeM0/AS1A13_091T08_9000006228_46549cztM0_level2_quad_clean.evt
Size (bytes)557,233,920108,561,600
Size531.4 MB 103.5 MB
Events in quadrant A6,497,272720,812
Events in quadrant B3,546,148761,756
Events in quadrant C3,303,155729,103
Events in quadrant D6,755,848603,692

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233502
B0148342
C0145812
D0247532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67653865.705839%
B67652543.754619%
C67651822.690318%
D676592413.658537%

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 7670 6765 15 15 0.20% 0.22%
B 7670 6765 15 15 0.20% 0.22%
C 7670 6765 54 54 0.70% 0.80%
D 7670 6765 689 689 8.98% 10.18%

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 3286172 19801.53 792 776 165.9
A 13 248 66295 394.89 792 776 165.9
A 9 191 51358 304.86 792 776 165.9
B 0 189 96597 602.42 797 772 159.1
B 3 112 92544 576.94 797 772 159.1
B 5 255 65176 404.89 797 772 159.1
C 14 254 198424 1064.78 785 788 185.6
C 9 54 14243 72.49 785 788 185.6
C 1 3 8643 42.32 785 788 185.6
D 13 249 1796473 9346.55 754 729 192.1
D 1 52 1532220 7971.16 754 729 192.1
D 2 120 298970 1552.3 754 729 192.1

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