ASTROSAT CZTI

Data Quality Report

Orbit 08206

Creation date: 2024-06-27T15:29:28.253790
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_103T01_9000001132_08206cztM0_level2.evt modeM0/AS1A03_103T01_9000001132_08206cztM0_level2_quad_clean.evt
Size (bytes)440,470,080122,924,160
Size420.1 MB 117.2 MB
Events in quadrant A2,955,047840,363
Events in quadrant B3,270,345846,556
Events in quadrant C2,825,273827,202
Events in quadrant D3,866,050774,576

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128602
B0139211
C0127211
D0158921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6215821.319389%
B62151121.802092%
C6215661.061947%
D62153104.987932%

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 7455 6215 1 1 0.01% 0.02%
B 7455 6215 23 23 0.31% 0.37%
C 7455 6216 0 0 0.00% 0.00%
D 7455 6215 235 235 3.15% 3.78%

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 15 10688 64.64 761 749 153.8
A 4 2 8561 50.81 761 749 153.8
A 0 226 7120 41.44 761 749 153.8
B 0 214 168151 1174.26 757 740 142.6
B 10 16 87477 608.39 757 740 142.6
B 0 213 40957 282.09 757 740 142.6
C 13 61 5623 29.72 724 727 164.8
C 3 202 1880 7.0 724 727 164.8
C -1 -1 -1 -1.0 724 727 164.8
D 1 52 736909 4232.69 716 691 173.9
D 12 233 254758 1460.69 716 691 173.9
D 7 55 47633 269.88 716 691 173.9

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