ASTROSAT CZTI

Data Quality Report

Orbit 05119

Creation date: 2024-06-27T14:51:34.130686
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_230T05_9000000648_05119cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05119cztM0_level2_quad_clean.evt
Size (bytes)517,688,64081,440,640
Size493.7 MB 77.7 MB
Events in quadrant A2,973,217517,075
Events in quadrant B3,250,227532,828
Events in quadrant C2,920,927530,011
Events in quadrant D6,087,088427,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134923
B0140842
C0133292
D0227882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6576320.486618%
B6576630.958029%
C6576250.380170%
D6576113417.244526%

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 7596 6577 11 11 0.14% 0.17%
B 7596 6577 21 21 0.28% 0.32%
C 7596 6577 1 1 0.01% 0.02%
D 7596 6577 860 860 11.32% 13.08%

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 50 70732 450.63 749 732 155.3
A 13 14 17725 109.39 749 732 155.3
A 0 226 7464 43.34 749 732 155.3
B 10 16 106769 720.13 767 749 147.2
B 15 54 39759 264.97 767 749 147.2
B 8 3 38918 259.26 767 749 147.2
C 12 4 10007 53.57 743 748 172.8
C 14 225 6795 34.99 743 748 172.8
C 13 61 5804 29.25 743 748 172.8
D 12 22 1585555 9745.67 661 640 162.6
D 13 235 1112466 6836.64 661 640 162.6
D 2 33 453707 2785.92 661 640 162.6

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