ASTROSAT CZTI

Data Quality Report

Orbit 19408

Creation date: 2024-06-27T18:02:33.119546
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/AS1A05_104T06_9000002878_19408cztM0_level2.evt modeM0/AS1A05_104T06_9000002878_19408cztM0_level2_quad_clean.evt
Size (bytes)619,430,40068,172,480
Size590.7 MB 65.0 MB
Events in quadrant A3,395,165429,324
Events in quadrant B3,428,350428,505
Events in quadrant C3,378,079409,077
Events in quadrant D8,131,597356,967

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139182
B0140522
C0138612
D0285682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6303691.094717%
B6303871.380295%
C63031011.602412%
D6303128220.339521%

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 7498 6303 10 10 0.13% 0.16%
B 7498 6303 15 15 0.20% 0.24%
C 7498 6303 0 0 0.00% 0.00%
D 7498 6303 1126 1126 15.02% 17.86%

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 5 16 90585 528.54 848 831 169.8
A 12 96 26312 150.05 848 831 169.8
A 13 254 10228 55.34 848 831 169.8
B 0 197 36061 223.55 842 824 157.6
B 15 32 33093 204.72 842 824 157.6
B 7 220 23885 146.3 842 824 157.6
C 14 238 128665 689.34 804 810 185.5
C 3 233 102772 549.73 804 810 185.5
C 13 61 5643 26.06 804 810 185.5
D 10 66 4604919 25059.01 762 741 183.7
D 5 222 473050 2570.62 762 741 183.7
D 7 238 138282 748.59 762 741 183.7

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