ASTROSAT CZTI

Data Quality Report

Orbit 05326

Creation date: 2024-06-27T14:53:55.269910
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_240T01_9000000674_05326cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05326cztM0_level2_quad_clean.evt
Size (bytes)431,222,40088,297,920
Size411.2 MB 84.2 MB
Events in quadrant A2,931,623566,355
Events in quadrant B3,092,334588,392
Events in quadrant C2,916,297563,995
Events in quadrant D3,699,596524,224

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128143
B0131872
C0127092
D0153832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6173330.534586%
B6173430.696582%
C6173150.242994%
D61731352.186943%

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 7518 6174 0 0 0.00% 0.00%
B 7518 6174 4 4 0.05% 0.06%
C 7518 6174 0 0 0.00% 0.00%
D 7518 6174 141 141 1.88% 2.28%

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 14 111 33710 218.73 745 731 150.8
A 13 251 18269 116.32 745 731 150.8
A 0 50 8999 54.84 745 731 150.8
B 15 204 26500 179.1 767 750 143.8
B 4 80 21235 142.48 767 750 143.8
B 15 54 17452 116.17 767 750 143.8
C 1 16 22111 126.42 735 742 169.0
C 14 67 15006 84.39 735 742 169.0
C 13 61 6078 31.57 735 742 169.0
D 2 16 405302 2278.63 719 697 177.6
D 7 203 315473 1772.74 719 697 177.6
D 2 234 143220 802.65 719 697 177.6

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