ASTROSAT CZTI

Data Quality Report

Orbit 30536

Creation date: 2024-06-27T20:16:25.933568
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/AS1A10_053T13_9000004394_30536cztM0_level2.evt modeM0/AS1A10_053T13_9000004394_30536cztM0_level2_quad_clean.evt
Size (bytes)1,491,785,280240,949,440
Size1.4 GB 229.8 MB
Events in quadrant A8,822,9571,539,360
Events in quadrant B14,827,2311,519,135
Events in quadrant C9,147,5761,487,762
Events in quadrant D11,123,2601,466,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382244
B0575604
C0386664
D0450084

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03800
B03800
C03800
D03800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186541360.729066%
B186534792.567952%
C186533181.704820%
D186532431.302740%

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 20484 18658 2 2 0.01% 0.01%
B 20483 18657 124 124 0.61% 0.66%
C 20483 18657 3 3 0.01% 0.02%
D 20483 18657 131 131 0.64% 0.70%

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 8 192 54035 114.39 2269 2224 452.9
A 13 254 35026 72.42 2269 2224 452.9
A 3 137 22692 45.19 2269 2224 452.9
B 6 159 5254197 12306.41 2226 2166 426.8
B 4 171 378313 881.38 2226 2166 426.8
B 0 229 254184 590.52 2226 2166 426.8
C 14 238 356737 692.47 2180 2193 512.0
C 3 233 158531 305.35 2180 2193 512.0
C 0 10 59178 111.3 2180 2193 512.0
D 1 52 993801 1899.27 2207 2148 522.1
D 8 195 847459 1618.98 2207 2148 522.1
D 13 104 505589 964.22 2207 2148 522.1

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