ASTROSAT CZTI

Data Quality Report

Orbit 05237

Creation date: 2024-06-27T14:52:54.587697
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/AS1C01_015T01_9000000668_05237cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05237cztM0_level2_quad_clean.evt
Size (bytes)566,752,32074,640,960
Size540.5 MB 71.2 MB
Events in quadrant A2,905,005481,395
Events in quadrant B2,984,127488,964
Events in quadrant C3,070,844480,040
Events in quadrant D7,774,872367,684

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129413
B0130882
C0133752
D0275412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6326180.284540%
B6326210.331963%
C6326160.252924%
D6326185629.339235%

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 7526 6327 0 0 0.00% 0.00%
B 7526 6327 0 0 0.00% 0.00%
C 7526 6327 8 8 0.11% 0.13%
D 7526 6327 1504 1504 19.98% 23.77%

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 10397 62.81 753 736 153.8
A 12 194 7280 42.54 753 736 153.8
A 0 226 7196 42.0 753 736 153.8
B 7 252 17893 117.4 763 746 146.1
B 12 111 14053 91.11 763 746 146.1
B 11 111 11124 71.05 763 746 146.1
C 7 159 115828 673.77 737 742 170.8
C 1 16 65887 381.39 737 742 170.8
C 7 158 11368 62.21 737 742 170.8
D 11 145 5272282 34610.74 622 603 152.3
D 8 195 77477 504.71 622 603 152.3
D 2 136 24474 156.72 622 603 152.3

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