ASTROSAT CZTI

Data Quality Report

Orbit 03302

Creation date: 2024-06-27T14:27:21.056630
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_241T02_9000000448_03302cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03302cztM0_level2_quad_clean.evt
Size (bytes)493,027,20080,807,040
Size470.2 MB 77.1 MB
Events in quadrant A3,144,385494,971
Events in quadrant B4,252,447501,939
Events in quadrant C3,377,657500,870
Events in quadrant D3,692,531472,618

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141173
B0170922
C0147132
D0159032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68381141.667154%
B68381452.120503%
C6838801.169933%
D68382223.246563%

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 7743 6839 1 1 0.01% 0.01%
B 7743 6839 29 29 0.37% 0.42%
C 7743 6839 9 9 0.12% 0.13%
D 7743 6839 114 114 1.47% 1.67%

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 31211 181.94 804 784 167.2
A 7 16 13099 73.64 804 784 167.2
A 0 226 8741 47.58 804 784 167.2
B 15 204 947426 6010.11 812 793 157.5
B 2 249 144268 910.91 812 793 157.5
B 14 167 13955 83.56 812 793 157.5
C 1 192 192725 1027.34 790 792 186.8
C 14 223 47644 250.78 790 792 186.8
C 12 4 36201 189.53 790 792 186.8
D 13 223 622295 3265.2 781 757 190.4
D 10 34 42410 218.82 781 757 190.4
D 14 34 25417 129.55 781 757 190.4

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