ASTROSAT CZTI

Data Quality Report

Orbit 07387

Creation date: 2024-06-27T15:19:11.910832
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/AS1G06_117T01_9000001012_07387cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07387cztM0_level2_quad_clean.evt
Size (bytes)554,791,68097,767,360
Size529.1 MB 93.2 MB
Events in quadrant A4,012,016603,730
Events in quadrant B3,907,005624,732
Events in quadrant C3,293,592625,992
Events in quadrant D5,078,949583,364

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172316
B0170092
C0153422
D0206212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75113895.179071%
B75121742.316294%
C75121221.624068%
D75127409.850905%

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 7707 7514 45 45 0.58% 0.60%
B 7707 7514 0 0 0.00% 0.00%
C 7707 7514 0 0 0.00% 0.00%
D 7707 7514 291 291 3.78% 3.87%

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 14 111 453449 2576.18 851 829 175.7
A 0 23 226956 1287.05 851 829 175.7
A 0 226 23569 129.43 851 829 175.7
B 0 187 481868 2886.32 866 843 166.7
B 0 214 43730 257.34 866 843 166.7
B 12 111 17698 101.14 866 843 166.7
C 1 16 12755 60.87 838 838 195.8
C 8 229 9821 45.88 838 838 195.8
C 13 61 6637 29.62 838 838 195.8
D 13 137 1365379 6778.83 814 786 201.3
D 2 216 440382 2183.76 814 786 201.3
D 5 233 62335 305.75 814 786 201.3

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