ASTROSAT CZTI

Data Quality Report

Orbit 29515

Creation date: 2024-06-27T20:04:53.591050
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_048T05_9000004250_29515cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29515cztM0_level2_quad_clean.evt
Size (bytes)632,695,68084,919,680
Size603.4 MB 81.0 MB
Events in quadrant A3,034,188560,111
Events in quadrant B3,069,924576,077
Events in quadrant C3,309,901551,510
Events in quadrant D9,358,662481,452

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121561
B0122821
C0132083
D0317731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5750560.973913%
B5751801.391062%
C57501552.695652%
D5750146025.391304%

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 7065 5751 0 0 0.00% 0.00%
B 7066 5752 2 2 0.03% 0.03%
C 7065 5751 0 0 0.00% 0.00%
D 7065 5751 1448 1448 20.50% 25.18%

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 13785 83.41 782 770 156.0
A 13 254 10025 59.31 782 770 156.0
A 3 137 6995 39.89 782 770 156.0
B 12 111 17218 112.84 774 755 145.9
B 0 230 16583 108.49 774 755 145.9
B 11 111 15586 101.66 774 755 145.9
C 3 233 158786 900.95 756 761 175.4
C 14 238 139578 791.44 756 761 175.4
C 7 247 28571 158.55 756 761 175.4
D 8 195 5118232 30723.4 711 696 166.6
D 12 33 1234618 7407.92 711 696 166.6
D 7 238 234452 1403.37 711 696 166.6

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