ASTROSAT CZTI

Data Quality Report

Orbit 07254

Creation date: 2024-06-27T15:17:24.359089
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_246T03_9000000990_07254cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07254cztM0_level2_quad_clean.evt
Size (bytes)453,847,68094,371,840
Size432.8 MB 90.0 MB
Events in quadrant A3,173,370594,002
Events in quadrant B3,429,252607,280
Events in quadrant C3,097,781598,133
Events in quadrant D3,564,355566,758

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144423
B0151112
C0144102
D0159072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7064280.396376%
B7064450.637033%
C7064120.169875%
D70641071.514723%

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 7804 7065 0 0 0.00% 0.00%
B 7804 7065 6 6 0.08% 0.08%
C 7804 7065 0 0 0.00% 0.00%
D 7804 7065 82 82 1.05% 1.16%

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 8 15 29602 174.08 812 794 165.5
A 15 174 11829 66.68 812 794 165.5
A 0 226 7730 41.91 812 794 165.5
B 4 81 166617 1052.37 819 799 157.6
B 0 214 36909 229.17 819 799 157.6
B 4 239 23513 144.16 819 799 157.6
C 9 243 16099 83.93 785 789 182.4
C 9 68 7175 35.01 785 789 182.4
C 8 128 6116 29.2 785 789 182.4
D 2 14 282470 1488.18 776 751 189.3
D 14 34 111593 585.52 776 751 189.3
D 2 206 88802 465.13 776 751 189.3

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