ASTROSAT CZTI

Data Quality Report

Orbit 29632

Creation date: 2024-06-27T20:06:15.241475
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/AS1T03_286T01_9000004268_29632cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29632cztM0_level2_quad_clean.evt
Size (bytes)478,494,720101,977,920
Size456.3 MB 97.3 MB
Events in quadrant A3,171,323665,823
Events in quadrant B3,124,655695,168
Events in quadrant C3,137,879665,212
Events in quadrant D4,620,700613,581

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137862
B0133822
C0134612
D0180802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6431320.497590%
B6431220.342093%
C6431681.057378%
D64314356.764111%

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 7636 6432 18 18 0.24% 0.28%
B 7636 6432 1 1 0.01% 0.02%
C 7636 6432 0 0 0.00% 0.00%
D 7636 6432 312 312 4.09% 4.85%

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 12 96 209323 1356.18 767 752 153.8
A 13 254 10981 66.51 767 752 153.8
A 3 137 7361 42.97 767 752 153.8
B 0 189 19388 127.73 779 758 145.8
B 12 111 17841 117.13 779 758 145.8
B 0 190 17617 115.59 779 758 145.8
C 14 238 127273 720.34 750 755 175.6
C 7 247 30698 170.48 750 755 175.6
C 3 233 29801 165.38 750 755 175.6
D 7 238 823056 4834.15 720 701 170.1
D 7 80 503733 2957.03 720 701 170.1
D 8 195 314376 1843.91 720 701 170.1

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