ASTROSAT CZTI

Data Quality Report

Orbit 13102

Creation date: 2024-06-27T16:36:20.681408
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/AS1C03_023T01_9000001930_13102cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13102cztM0_level2_quad_clean.evt
Size (bytes)704,419,20083,321,280
Size671.8 MB 79.5 MB
Events in quadrant A3,395,272538,142
Events in quadrant B10,577,858438,073
Events in quadrant C3,200,966545,068
Events in quadrant D3,691,006519,891

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143993
B0360432
C0141452
D0155802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6905741.071687%
B6905357251.730630%
C6905390.564808%
D6905731.057205%

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 7561 6907 2 2 0.03% 0.03%
B 7561 6906 3164 3164 41.85% 45.82%
C 7561 6907 5 5 0.07% 0.07%
D 7561 6907 30 30 0.40% 0.43%

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 96397 564.02 833 817 169.5
A 13 248 26788 153.26 833 817 169.5
A 8 15 22099 125.59 833 817 169.5
B 0 85 8155886 71186.18 585 571 114.6
B 3 64 79591 689.75 585 571 114.6
B 4 239 25343 216.23 585 571 114.6
C 14 234 32856 169.97 812 818 188.5
C 13 61 5890 26.91 812 818 188.5
C 8 222 2412 8.46 812 818 188.5
D 1 52 285712 1460.63 808 786 195.1
D 10 157 165759 845.71 808 786 195.1
D 10 253 71802 364.05 808 786 195.1

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