ASTROSAT CZTI

Data Quality Report

Orbit 03548

Creation date: 2024-06-27T14:30:49.382303
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/AS1G05_045T01_9000000468_03548cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03548cztM0_level2_quad_clean.evt
Size (bytes)447,281,28077,008,320
Size426.6 MB 73.4 MB
Events in quadrant A2,983,758474,142
Events in quadrant B3,466,773475,133
Events in quadrant C3,790,910469,519
Events in quadrant D2,861,760458,701

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135783
B0147082
C0158752
D0134832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6508210.322680%
B6508430.660725%
C65081442.212661%
D6509300.460900%

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 7568 6509 5 5 0.07% 0.08%
B 7568 6509 4 4 0.05% 0.06%
C 7568 6509 115 115 1.52% 1.77%
D 7569 6510 11 11 0.15% 0.17%

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 0 118 75734 496.9 739 724 151.0
A 3 1 24829 159.68 739 724 151.0
A 0 50 23679 152.06 739 724 151.0
B 14 167 273823 1880.07 752 733 145.3
B 15 204 197382 1353.82 752 733 145.3
B 0 229 20957 139.23 752 733 145.3
C 1 192 573780 3362.6 727 730 170.4
C 4 248 353202 2068.27 727 730 170.4
C 1 16 15926 89.17 727 730 170.4
D 13 46 27428 153.51 722 700 174.1
D 8 195 24572 137.11 722 700 174.1
D 13 223 19583 108.45 722 700 174.1

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