ASTROSAT CZTI

Data Quality Report

Orbit 43606

Creation date: 2024-06-27T22:53:36.878153
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/AS1C07_001T10_9000005890_43606cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43606cztM0_level2_quad_clean.evt
Size (bytes)1,151,544,96074,687,040
Size1.1 GB 71.2 MB
Events in quadrant A3,967,457710,897
Events in quadrant B8,239,453656,213
Events in quadrant C15,786,028294,925
Events in quadrant D14,157,871162,044

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161851
B0288171
C0510371
D0462317

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6168961.556420%
B6168177428.761349%
C6168589495.557717%
D6167603197.794714%

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 7218 6169 14 14 0.19% 0.23%
B 7218 6169 1413 1413 19.58% 22.90%
C 7217 6167 5735 5735 79.47% 92.99%
D 7216 6166 5025 5025 69.64% 81.50%

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 820759 5885.46 685 672 139.3
A 2 79 156514 1118.42 685 672 139.3
A 15 222 149052 1064.87 685 672 139.3
B 4 206 4688156 39106.22 626 607 119.9
B 5 235 293151 2440.57 626 607 119.9
B 0 183 176401 1466.57 626 607 119.9
C 15 142 8380878 122178.54 292 295 68.6
C 15 158 2104977 30683.66 292 295 68.6
C 15 174 2044317 29799.31 292 295 68.6
D 4 212 7266302 131136.47 190 182 55.4
D 4 216 2432291 43893.88 190 182 55.4
D 1 20 1372714 24770.99 190 182 55.4

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