ASTROSAT CZTI

Data Quality Report

Orbit 10467

Creation date: 2024-06-27T15:59:35.790647
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_126T01_9000001512_10467cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10467cztM0_level2_quad_clean.evt
Size (bytes)527,555,52096,880,320
Size503.1 MB 92.4 MB
Events in quadrant A4,172,166613,940
Events in quadrant B3,752,231627,975
Events in quadrant C3,238,735620,002
Events in quadrant D4,342,860588,155

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166883
B0156432
C0143342
D0172762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69451942.793377%
B69452673.844492%
C69451351.943844%
D69452403.455724%

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 7720 6945 17 17 0.22% 0.24%
B 7720 6945 85 85 1.10% 1.22%
C 7720 6945 3 3 0.04% 0.04%
D 7720 6945 101 101 1.31% 1.45%

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 13 251 756673 4462.95 833 813 169.4
A 3 80 114887 673.55 833 813 169.4
A 1 162 40980 237.16 833 813 169.4
B 4 239 384394 2419.11 830 807 158.6
B 11 51 69910 435.8 830 807 158.6
B 0 214 38167 235.61 830 807 158.6
C 14 234 16095 79.56 825 831 191.9
C 13 61 6162 27.79 825 831 191.9
C 11 7 4374 18.47 825 831 191.9
D 1 20 517206 2424.41 811 794 213.0
D 13 104 346814 1624.47 811 794 213.0
D 8 195 334873 1568.41 811 794 213.0

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