ASTROSAT CZTI

Data Quality Report

Orbit 05747

Creation date: 2024-06-27T14:58:38.228840
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/AS1A02_149T01_9000000740_05747cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05747cztM0_level2_quad_clean.evt
Size (bytes)455,109,12067,193,280
Size434.0 MB 64.1 MB
Events in quadrant A3,194,522401,423
Events in quadrant B3,512,084405,404
Events in quadrant C3,120,666404,595
Events in quadrant D3,521,240376,903

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133915
B0142184
C0133476
D0146818

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64011111.734104%
B64011332.077800%
C6400751.171875%
D64001632.546875%

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 7627 6403 2 2 0.03% 0.03%
B 7627 6403 2 2 0.03% 0.03%
C 7627 6403 0 0 0.00% 0.00%
D 7627 6404 75 75 0.98% 1.17%

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 15 236 11450 63.5 823 807 167.6
A 14 111 9597 52.44 823 807 167.6
A 0 226 8074 43.36 823 807 167.6
B 15 204 101961 639.64 830 814 158.1
B 11 51 57019 355.44 830 814 158.1
B 0 219 46624 289.7 830 814 158.1
C 9 16 19796 103.48 793 798 183.6
C 13 61 6336 30.17 793 798 183.6
C 14 67 3335 13.82 793 798 183.6
D 4 95 357059 1869.61 785 762 190.6
D 13 61 53475 276.6 785 762 190.6
D 2 206 33776 173.24 785 762 190.6

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