ASTROSAT CZTI

Data Quality Report

Orbit 13007

Creation date: 2024-06-27T16:35:00.775499
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/AS1T02_002T01_9000001914_13007cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13007cztM0_level2_quad_clean.evt
Size (bytes)506,954,880125,354,880
Size483.5 MB 119.5 MB
Events in quadrant A3,622,430836,512
Events in quadrant B5,067,789791,952
Events in quadrant C3,059,136863,329
Events in quadrant D3,137,724826,722

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154883
B0197712
C0139152
D0143432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6863881.282238%
B686375110.942736%
C6863190.276847%
D6863370.539123%

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 7844 6865 46 46 0.59% 0.67%
B 7844 6865 427 427 5.44% 6.22%
C 7844 6865 1 1 0.01% 0.01%
D 7844 6865 15 15 0.19% 0.22%

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 12 189 179265 1131.98 783 765 157.7
A 13 248 165070 1041.96 783 765 157.7
A 15 223 155066 978.51 783 765 157.7
B 4 239 1401029 10015.41 743 724 139.8
B 3 64 354790 2532.39 743 724 139.8
B 10 245 117625 836.11 743 724 139.8
C 0 207 7527 37.39 782 785 180.3
C 13 61 5613 26.77 782 785 180.3
C 14 234 3071 12.68 782 785 180.3
D 1 52 182438 979.41 771 747 185.5
D 2 234 23183 120.94 771 747 185.5
D 2 33 15608 80.11 771 747 185.5

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