ASTROSAT CZTI

Data Quality Report

Orbit 29611

Creation date: 2024-06-27T20:06:02.286346
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_29611cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29611cztM0_level2_quad_clean.evt
Size (bytes)483,451,200109,218,240
Size461.1 MB 104.2 MB
Events in quadrant A3,147,306723,653
Events in quadrant B3,248,163735,222
Events in quadrant C3,271,365706,448
Events in quadrant D4,523,032678,934

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138942
B0141192
C0140602
D0179402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6646400.601866%
B6646640.962985%
C66461111.670178%
D66462513.776708%

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 7656 6647 0 0 0.00% 0.00%
B 7656 6647 2 2 0.03% 0.03%
C 7656 6646 0 0 0.00% 0.00%
D 7656 6646 165 165 2.16% 2.48%

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 13 254 11871 67.56 813 794 164.0
A 3 137 8188 45.1 813 794 164.0
A 0 226 6923 37.38 813 794 164.0
B 0 229 41965 268.79 807 786 153.2
B 0 189 24253 153.18 807 786 153.2
B 12 111 19040 119.15 807 786 153.2
C 14 238 142937 766.97 788 792 185.3
C 14 254 23401 121.99 788 792 185.3
C 10 22 16393 84.18 788 792 185.3
D 12 227 706376 3760.53 786 765 187.6
D 8 195 339172 1803.53 786 765 187.6
D 7 80 205055 1088.76 786 765 187.6

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