ASTROSAT CZTI

Data Quality Report

Orbit 34115

Creation date: 2024-06-27T20:56:40.315623
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/AS1A11_097T08_9000004874_34115cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34115cztM0_level2_quad_clean.evt
Size (bytes)627,200,640114,937,920
Size598.1 MB 109.6 MB
Events in quadrant A3,411,125762,772
Events in quadrant B4,043,601777,837
Events in quadrant C4,561,290748,556
Events in quadrant D6,498,974697,653

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147034
B0166702
C0178882
D0241482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7094230.324218%
B7094660.930364%
C70942413.397237%
D70945047.104595%

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 23090 7097 5 5 0.02% 0.07%
B 23090 7097 29 29 0.13% 0.41%
C 23090 7097 191 191 0.83% 2.69%
D 23090 7097 478 478 2.07% 6.74%

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 15 169 154380 918.69 832 815 167.2
A 10 83 21375 123.0 832 815 167.2
A 13 254 11890 66.26 832 815 167.2
B 5 172 266952 1673.53 830 808 159.0
B 0 189 142368 890.14 830 808 159.0
B 0 219 101968 636.1 830 808 159.0
C 0 10 735511 3956.25 799 806 185.7
C 14 254 329567 1770.32 799 806 185.7
C 15 214 303734 1631.21 799 806 185.7
D 8 195 1198812 6299.65 782 761 190.2
D 2 250 1005403 5282.66 782 761 190.2
D 10 118 361378 1896.21 782 761 190.2

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