ASTROSAT CZTI

Data Quality Report

Orbit 05059

Creation date: 2024-06-27T14:50:46.837546
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/AS1G05_218T04_9000000640_05059cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05059cztM0_level2_quad_clean.evt
Size (bytes)464,791,68060,978,240
Size443.3 MB 58.2 MB
Events in quadrant A3,424,386352,158
Events in quadrant B3,190,440352,750
Events in quadrant C3,387,407347,706
Events in quadrant D3,630,120337,994

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148864
B0138884
C0144343
D0155853

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65321392.127985%
B6532530.811390%
C6532550.842009%
D65321812.770974%

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 6883 6534 45 45 0.65% 0.69%
B 6883 6534 1 1 0.01% 0.02%
C 6883 6534 0 0 0.00% 0.00%
D 6883 6534 99 99 1.44% 1.52%

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 13 251 456588 2935.5 758 740 155.3
A 0 50 32188 202.51 758 740 155.3
A 15 174 12958 78.68 758 740 155.3
B 15 204 103937 689.34 765 746 149.7
B 4 48 70220 464.1 765 746 149.7
B 0 219 32694 213.42 765 746 149.7
C 1 16 508092 2955.28 731 733 171.7
C 14 67 16966 94.55 731 733 171.7
C 9 54 7108 37.13 731 733 171.7
D 13 239 310918 1706.2 728 703 181.8
D 2 33 258011 1415.21 728 703 181.8
D 13 235 137552 752.68 728 703 181.8

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