ASTROSAT CZTI

Data Quality Report

Orbit 09094

Creation date: 2024-06-27T15:41:04.787300
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/AS1A03_120T01_9000001266_09094cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09094cztM0_level2_quad_clean.evt
Size (bytes)478,946,88093,277,440
Size456.8 MB 89.0 MB
Events in quadrant A3,717,496589,498
Events in quadrant B3,377,978600,018
Events in quadrant C3,234,966582,905
Events in quadrant D3,696,949563,024

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01553464
B01477851
C01467155
D01588475

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70291972.802675%
B70351762.501777%
C70311231.749396%
D70221992.833950%

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 7087 7058 3 3 0.04% 0.04%
B 7087 7054 5 5 0.07% 0.07%
C 7087 7056 5 5 0.07% 0.07%
D 7087 7056 61 61 0.86% 0.86%

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 8 5 425817 2451.66 841 819 173.4
A 1 162 18866 104.11 841 819 173.4
A 4 2 16678 91.48 841 819 173.4
B 0 219 30782 185.36 843 820 161.6
B 4 80 22534 134.33 843 820 161.6
B 12 111 17931 105.86 843 820 161.6
C 14 234 20766 103.58 821 823 192.5
C 13 61 6182 27.83 821 823 192.5
C 8 128 4832 20.82 821 823 192.5
D 10 172 172225 800.96 814 792 214.0
D 2 14 157525 732.28 814 792 214.0
D 7 71 102502 475.2 814 792 214.0

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