ASTROSAT CZTI

Data Quality Report

Orbit 03112

Creation date: 2024-06-27T14:24:49.210944
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_214T01_9000000428_03112cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03112cztM0_level2_quad_clean.evt
Size (bytes)539,743,68064,658,880
Size514.7 MB 61.7 MB
Events in quadrant A2,844,881404,073
Events in quadrant B3,034,304403,139
Events in quadrant C6,877,795380,331
Events in quadrant D3,211,599380,329

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118960
B0123390
C0244100
D0132840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5567991.778337%
B55671552.784264%
C5567109219.615592%
D55671582.838153%

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 6813 5568 13 13 0.19% 0.23%
B 6813 5568 53 53 0.78% 0.95%
C 6813 5568 845 845 12.40% 15.18%
D 6813 5568 82 82 1.20% 1.47%

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 90774 637.01 688 674 141.4
A 8 15 57808 403.94 688 674 141.4
A 0 149 19889 135.85 688 674 141.4
B 0 219 164493 1237.57 688 675 132.4
B 15 204 86727 650.09 688 675 132.4
B 15 85 48046 357.87 688 675 132.4
C 0 219 3855004 27100.4 608 611 142.2
C 14 223 457143 3209.9 608 611 142.2
C 6 80 143047 1001.47 608 611 142.2
D 13 120 466728 2662.73 650 638 175.0
D 10 85 104387 592.71 650 638 175.0
D 2 136 47963 270.36 650 638 175.0

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