ASTROSAT CZTI

Data Quality Report

Orbit 09127

Creation date: 2024-06-27T15:41:37.031191
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/AS1G07_028T01_9000001272_09127cztM0_level2.evt modeM0/AS1G07_028T01_9000001272_09127cztM0_level2_quad_clean.evt
Size (bytes)400,104,00071,369,280
Size381.6 MB 68.1 MB
Events in quadrant A2,932,683457,740
Events in quadrant B2,383,999459,048
Events in quadrant C2,350,518451,283
Events in quadrant D4,100,993433,365

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01237422
B01057615
C01056429
D01583021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5135510.993184%
B5138310.603348%
C5131260.506724%
D51382194.262359%

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 6010 5145 3 3 0.05% 0.06%
B 6010 5145 0 0 0.00% 0.00%
C 6010 5145 4 4 0.07% 0.08%
D 6010 5144 130 130 2.16% 2.53%

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 8 5 525427 4241.15 600 588 123.7
A 1 162 55808 446.22 600 588 123.7
A 1 178 10886 83.22 600 588 123.7
B 0 214 24939 207.8 603 587 117.2
B 12 111 13033 106.21 603 587 117.2
B 11 111 10578 85.26 603 587 117.2
C 14 234 41432 297.12 584 586 137.5
C 9 68 30675 218.87 584 586 137.5
C 13 61 4305 27.05 584 586 137.5
D 1 52 1823745 12400.95 573 558 147.0
D 2 14 63895 430.81 573 558 147.0
D 2 234 20949 138.7 573 558 147.0

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