ASTROSAT CZTI

Data Quality Report

Orbit 47690

Creation date: 2024-07-23T12:09:11.075895
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/AS1A13_082T01_9000006342_47690cztM0_level2.fits modeM0/AS1A13_082T01_9000006342_47690cztM0_level2_quad_clean.evt
Size (bytes)470,125,440107,421,120
Size448.3 MB 102.4 MB
Events in quadrant A7,017,690703,240
Events in quadrant B3,118,304735,563
Events in quadrant C2,934,804710,272
Events in quadrant D3,824,896647,630

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257211
B0137051
C0133692
D0159351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65342363.611876%
B6534811.239669%
C6534530.811142%
D65341001.530456%

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 7564 6534 88 88 1.16% 1.35%
B 7564 6534 10 10 0.13% 0.15%
C 7564 6534 2 2 0.03% 0.03%
D 7564 6534 50 50 0.66% 0.77%

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 10 83 3782332 24423.43 736 721 154.8
A 9 191 378334 2438.8 736 721 154.8
A 7 3 10590 63.74 736 721 154.8
B 0 200 104487 702.1 743 720 147.8
B 0 190 35737 236.93 743 720 147.8
B 12 111 18820 122.47 743 720 147.8
C 14 254 30077 166.96 742 747 175.7
C 3 233 6587 33.24 742 747 175.7
C 12 249 5870 29.16 742 747 175.7
D 10 181 498170 2707.6 737 716 183.7
D 12 2 239964 1302.2 737 716 183.7
D 2 249 73971 398.72 737 716 183.7

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