ASTROSAT CZTI

Data Quality Report

Orbit 32058

Creation date: 2024-06-27T20:35:26.627003
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/AS1A10_109T01_9000004678_32058cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32058cztM0_level2_quad_clean.evt
Size (bytes)547,390,080104,402,880
Size522.0 MB 99.6 MB
Events in quadrant A3,204,655703,157
Events in quadrant B5,151,558699,081
Events in quadrant C3,843,512662,134
Events in quadrant D3,942,520648,705

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135081
B0198321
C0155471
D0161191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6434250.388561%
B6434921.429904%
C64341842.859807%
D6433410.637339%

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 7534 6434 0 0 0.00% 0.00%
B 7534 6434 10 10 0.13% 0.16%
C 7534 6434 51 51 0.68% 0.79%
D 7533 6434 15 15 0.20% 0.23%

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 12 16 13747 78.07 825 810 165.7
A 13 254 11458 64.25 825 810 165.7
A 12 194 8083 43.89 825 810 165.7
B 6 159 1783569 11504.07 817 799 155.0
B 5 172 63889 407.11 817 799 155.0
B 10 245 39295 248.41 817 799 155.0
C 0 10 390342 2119.86 786 793 183.8
C 3 233 141861 767.67 786 793 183.8
C 14 238 127342 688.66 786 793 183.8
D 8 195 790780 4127.09 793 774 191.4
D 2 250 66088 341.21 793 774 191.4
D 12 233 55240 284.54 793 774 191.4

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