ASTROSAT CZTI

Data Quality Report

Orbit 23232

Creation date: 2024-06-27T18:51:37.886091
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/AS1A08_009T01_9000003434_23232cztM0_level2.evt modeM0/AS1A08_009T01_9000003434_23232cztM0_level2_quad_clean.evt
Size (bytes)448,980,48098,890,560
Size428.2 MB 94.3 MB
Events in quadrant A3,086,077655,196
Events in quadrant B3,005,906668,534
Events in quadrant C3,121,505649,039
Events in quadrant D3,999,504626,315

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126951
B0125031
C0128671
D0158451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56561101.944837%
B56571061.873785%
C56571823.217253%
D56571883.323316%

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 7001 5656 13 13 0.19% 0.23%
B 7002 5657 5 5 0.07% 0.09%
C 7002 5657 30 30 0.43% 0.53%
D 7002 5657 90 90 1.29% 1.59%

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 13 252 99551 657.23 754 739 150.3
A 6 16 78600 517.88 754 739 150.3
A 13 254 9584 58.83 754 739 150.3
B 0 228 17491 120.51 755 739 139.0
B 12 111 15511 106.27 755 739 139.0
B 5 172 14984 102.48 755 739 139.0
C 14 238 118337 696.38 736 744 168.9
C 0 10 115270 678.21 736 744 168.9
C 10 9 12006 66.69 736 744 168.9
D 1 52 450274 2506.31 743 722 179.4
D 2 152 223218 1240.45 743 722 179.4
D 7 238 178538 991.35 743 722 179.4

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