ASTROSAT CZTI

Data Quality Report

Orbit 05384

Creation date: 2024-06-27T14:54:35.056220
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_214T01_9000000684_05384cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05384cztM0_level2_quad_clean.evt
Size (bytes)725,256,00063,190,080
Size691.7 MB 60.3 MB
Events in quadrant A2,741,594406,117
Events in quadrant B2,836,516415,563
Events in quadrant C3,174,965405,355
Events in quadrant D12,827,531287,837

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118712
B0120461
C0128501
D0419401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5674500.881213%
B5674571.004582%
C5674400.704970%
D5674383167.518505%

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 7008 5673 10 10 0.14% 0.18%
B 7009 5674 4 4 0.06% 0.07%
C 7009 5674 1 1 0.01% 0.02%
D 7009 5674 4900 4900 69.91% 86.36%

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 15 174 47792 334.16 687 674 141.0
A 14 111 22039 151.52 687 674 141.0
A 0 50 14500 98.05 687 674 141.0
B 15 54 32083 234.06 702 686 134.1
B 15 204 28029 203.84 702 686 134.1
B 0 219 22355 161.54 702 686 134.1
C 1 16 536290 3401.33 673 677 157.5
C 12 4 11059 65.93 673 677 157.5
C 13 61 5531 30.82 673 677 157.5
D 7 237 9820692 68198.77 579 561 144.0
D 2 63 364921 2530.4 579 561 144.0
D 1 239 286137 1983.27 579 561 144.0

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