ASTROSAT CZTI

Data Quality Report

Orbit 05947

Creation date: 2024-06-27T15:01:06.834769
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_157T01_9000000772_05947cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05947cztM0_level2_quad_clean.evt
Size (bytes)461,724,48096,373,440
Size440.3 MB 91.9 MB
Events in quadrant A3,708,519613,710
Events in quadrant B3,139,354637,953
Events in quadrant C2,979,085620,547
Events in quadrant D3,705,976584,181

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154723
B0138832
C0135232
D0156622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6625921.388679%
B6625260.392453%
C662580.120755%
D6625821.237736%

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 7855 6626 75 75 0.95% 1.13%
B 7855 6626 0 0 0.00% 0.00%
C 7855 6626 0 0 0.00% 0.00%
D 7855 6626 53 53 0.67% 0.80%

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 4 2 679239 4431.8 759 744 153.1
A 8 192 50843 327.24 759 744 153.1
A 13 251 42477 272.59 759 744 153.1
B 15 204 39555 259.35 781 762 149.6
B 15 255 39304 257.67 781 762 149.6
B 12 111 13717 86.61 781 762 149.6
C 1 16 20861 116.91 746 751 172.0
C 8 128 15741 87.14 746 751 172.0
C 9 54 10700 57.84 746 751 172.0
D 1 20 840352 4663.87 731 706 180.0
D 2 63 62543 343.48 731 706 180.0
D 12 233 15955 84.7 731 706 180.0

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