ASTROSAT CZTI

Data Quality Report

Orbit 04053

Creation date: 2024-06-27T14:36:48.692632
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/AS1G05_241T04_9000000518_04053cztM0_level2.evt modeM0/AS1G05_241T04_9000000518_04053cztM0_level2_quad_clean.evt
Size (bytes)436,625,28068,489,280
Size416.4 MB 65.3 MB
Events in quadrant A3,320,185414,669
Events in quadrant B3,326,667421,312
Events in quadrant C3,068,912410,961
Events in quadrant D3,087,910395,930

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137973
B0138082
C0131022
D0134272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61771302.104582%
B61771031.667476%
C6177631.019913%
D6177671.084669%

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 7482 6178 64 64 0.86% 1.04%
B 7482 6178 23 23 0.31% 0.37%
C 7482 6178 33 33 0.44% 0.53%
D 7482 6178 40 40 0.53% 0.65%

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 0 50 186177 1188.01 761 745 156.1
A 8 15 154243 983.41 761 745 156.1
A 0 118 24209 150.33 761 745 156.1
B 14 167 174350 1183.7 775 758 146.7
B 15 204 76160 514.16 775 758 146.7
B 0 183 19041 124.67 775 758 146.7
C 9 144 133473 772.75 744 750 171.8
C 1 16 25076 141.63 744 750 171.8
C 13 61 6213 31.81 744 750 171.8
D 12 227 108346 599.09 741 721 179.6
D 10 246 73166 403.26 741 721 179.6
D 2 232 45709 250.42 741 721 179.6

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