ASTROSAT CZTI

Data Quality Report

Orbit 19423

Creation date: 2024-06-27T18:02:45.256906
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/AS1A05_212T09_9000002886_19423cztM0_level2.evt modeM0/AS1A05_212T09_9000002886_19423cztM0_level2_quad_clean.evt
Size (bytes)460,776,96096,134,400
Size439.4 MB 91.7 MB
Events in quadrant A3,240,710633,748
Events in quadrant B3,281,822638,215
Events in quadrant C3,130,702606,970
Events in quadrant D3,885,929605,321

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133581
B0134212
C0129601
D0154211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6122590.963737%
B6122711.159752%
C6122741.208755%
D61221061.731460%

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 7352 6122 9 9 0.12% 0.15%
B 7352 6122 20 20 0.27% 0.33%
C 7352 6122 0 0 0.00% 0.00%
D 7352 6122 52 52 0.71% 0.85%

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 5 16 136175 837.54 803 788 161.6
A 13 254 9334 52.87 803 788 161.6
A 12 96 8204 45.88 803 788 161.6
B 7 220 146731 997.72 783 765 146.3
B 0 198 30291 201.82 783 765 146.3
B 0 197 24560 162.64 783 765 146.3
C 14 238 119408 681.29 758 763 174.1
C 3 233 52627 297.82 758 763 174.1
C 13 61 5301 26.06 758 763 174.1
D 1 52 766739 4071.19 784 764 188.1
D 7 238 115854 611.71 784 764 188.1
D 8 195 22738 116.79 784 764 188.1

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