ASTROSAT CZTI

Data Quality Report

Orbit 03341

Creation date: 2024-06-27T14:27:46.538862
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_246T01_9000000450_03341cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03341cztM0_level2_quad_clean.evt
Size (bytes)533,545,92083,842,560
Size508.8 MB 80.0 MB
Events in quadrant A3,119,991518,706
Events in quadrant B4,129,691528,883
Events in quadrant C5,347,654518,904
Events in quadrant D3,109,133507,488

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138173
B0166852
C0204912
D0140292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6674490.734192%
B66741081.618220%
C66742573.850764%
D6674260.389571%

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 8880 6676 0 0 0.00% 0.00%
B 8880 6676 6 6 0.07% 0.09%
C 8880 6676 172 172 1.94% 2.58%
D 8880 6676 6 6 0.07% 0.09%

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 14 249 26266 154.02 795 776 165.5
A 8 15 12596 71.42 795 776 165.5
A 0 226 8747 48.16 795 776 165.5
B 14 167 383755 2430.97 812 794 157.5
B 15 204 287743 1821.5 812 794 157.5
B 3 0 176424 1114.87 812 794 157.5
C 8 208 1351330 7426.29 774 780 181.9
C 14 223 632014 3470.98 774 780 181.9
C 1 192 185474 1015.58 774 780 181.9
D 13 239 41423 209.3 780 757 194.3
D 8 195 34643 174.4 780 757 194.3
D 13 223 19507 96.5 780 757 194.3

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