ASTROSAT CZTI

Data Quality Report

Orbit 11361

Creation date: 2024-06-27T16:11:49.082364
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/AS1G08_062T01_9000001660_11361cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11361cztM0_level2_quad_clean.evt
Size (bytes)482,181,12082,609,920
Size459.8 MB 78.8 MB
Events in quadrant A2,870,401539,351
Events in quadrant B4,234,921512,666
Events in quadrant C2,759,609537,141
Events in quadrant D4,340,922503,509

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121812
B0163851
C0119831
D0168761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5844310.530459%
B58444127.049966%
C5844190.325120%
D58444487.665982%

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 7164 5845 0 0 0.00% 0.00%
B 7164 5845 279 279 3.89% 4.77%
C 7164 5845 0 0 0.00% 0.00%
D 7164 5845 320 320 4.47% 5.47%

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 11 29 27407 185.25 717 704 144.1
A 15 174 19556 130.79 717 704 144.1
A 1 162 19073 127.44 717 704 144.1
B 3 64 946856 7275.58 699 682 130.0
B 4 239 460325 3534.41 699 682 130.0
B 15 204 40009 302.4 699 682 130.0
C 14 67 9360 53.3 704 709 162.3
C 13 61 5163 27.44 704 709 162.3
C 8 222 4774 25.05 704 709 162.3
D 10 253 880684 5460.72 677 661 161.2
D 13 152 431413 2672.9 677 661 161.2
D 2 14 195455 1208.73 677 661 161.2

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