ASTROSAT CZTI

Data Quality Report

Orbit 10669

Creation date: 2024-06-27T16:02:14.662571
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/AS1A03_097T01_9000001540_10669cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10669cztM0_level2_quad_clean.evt
Size (bytes)536,016,96090,599,040
Size511.2 MB 86.4 MB
Events in quadrant A2,985,620584,817
Events in quadrant B4,544,240581,557
Events in quadrant C3,762,769586,344
Events in quadrant D4,499,753537,201

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134043
B0178982
C0155632
D0176612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6503350.538213%
B65033224.951561%
C65031602.460403%
D65032323.567584%

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 7593 6504 0 0 0.00% 0.00%
B 7593 6504 208 208 2.74% 3.20%
C 7593 6504 132 132 1.74% 2.03%
D 7593 6504 178 178 2.34% 2.74%

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 1 162 14604 88.11 769 754 157.2
A 0 226 7049 40.05 769 754 157.2
A 12 194 6059 33.75 769 754 157.2
B 4 239 1327532 9171.06 766 748 144.7
B 0 214 83597 572.67 766 748 144.7
B 15 185 48420 329.52 766 748 144.7
C 4 254 806836 4683.04 749 755 172.1
C 4 175 24832 139.88 749 755 172.1
C 13 61 5728 28.89 749 755 172.1
D 14 34 405120 2293.41 732 713 176.3
D 8 195 362240 2050.23 732 713 176.3
D 2 16 323701 1831.68 732 713 176.3

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