ASTROSAT CZTI

Data Quality Report

Orbit 29555

Creation date: 2024-06-27T20:05:24.127773
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_094T12_9000004260_29555cztM0_level2.evt modeM0/AS1A10_094T12_9000004260_29555cztM0_level2_quad_clean.evt
Size (bytes)162,624,96032,443,200
Size155.1 MB 30.9 MB
Events in quadrant A800,770226,064
Events in quadrant B874,576229,736
Events in quadrant C871,512209,538
Events in quadrant D2,266,795198,182

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034081
B036231
C036061
D078701

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160910.062150%
B1609140.870106%
C16091217.520199%
D1609734.536979%

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 1609 1609 0 0 0.00% 0.00%
B 1609 1609 6 6 0.37% 0.37%
C 1609 1609 0 0 0.00% 0.00%
D 1609 1609 103 103 6.40% 6.40%

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 0 13 19783 458.72 202 198 42.7
A 13 254 3571 79.0 202 198 42.7
A 3 137 1975 41.62 202 198 42.7
B 5 255 33674 820.46 202 197 40.8
B 5 172 27829 677.21 202 197 40.8
B 0 199 6895 164.16 202 197 40.8
C 14 238 68673 1552.03 182 183 44.1
C 14 254 53785 1214.66 182 183 44.1
C 3 233 30245 681.23 182 183 44.1
D 8 195 1426731 30989.16 184 179 46.0
D 13 153 70443 1526.35 184 179 46.0
D 7 238 26817 578.66 184 179 46.0

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