ASTROSAT CZTI

Data Quality Report

Orbit 05853

Creation date: 2024-06-27T15:00:01.818412
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/AS1G06_039T01_9000000758_05853cztM0_level2.evt modeM0/AS1G06_039T01_9000000758_05853cztM0_level2_quad_clean.evt
Size (bytes)452,949,120107,038,080
Size432.0 MB 102.1 MB
Events in quadrant A3,062,406710,611
Events in quadrant B3,121,611705,670
Events in quadrant C2,970,939691,601
Events in quadrant D4,095,049654,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01409046
B01409042
C01398425
D01695765

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6870390.567686%
B6873520.756584%
C6881320.465049%
D68731121.629565%

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 7173 6893 4 4 0.06% 0.06%
B 7173 6894 2 2 0.03% 0.03%
C 7173 6894 0 0 0.00% 0.00%
D 7173 6892 68 68 0.95% 0.99%

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 15 234 42982 265.16 778 760 159.2
A 15 174 13998 83.14 778 760 159.2
A 0 12 10813 63.13 778 760 159.2
B 15 85 28397 182.92 782 761 151.1
B 4 48 18790 119.33 782 761 151.1
B 0 214 18489 117.34 782 761 151.1
C 8 128 10574 55.84 755 757 175.8
C 8 112 6461 32.44 755 757 175.8
C 13 61 6036 30.03 755 757 175.8
D 1 239 541025 2917.47 749 723 185.2
D 12 233 537163 2896.61 749 723 185.2
D 11 241 58981 314.58 749 723 185.2

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