ASTROSAT CZTI

Data Quality Report

Orbit 33029

Creation date: 2024-06-27T20:44:26.350102
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/AS1A11_080T01_9000004756_33029cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33029cztM0_level2_quad_clean.evt
Size (bytes)679,069,44081,244,800
Size647.6 MB 77.5 MB
Events in quadrant A2,683,232573,881
Events in quadrant B4,589,400513,647
Events in quadrant C3,984,408538,837
Events in quadrant D8,945,510456,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113442
B0172171
C0153771
D0303601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5381110.204423%
B538174413.826426%
C53812294.255715%
D5381160129.752834%

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 7114 5382 8 8 0.11% 0.15%
B 7114 5382 563 563 7.91% 10.46%
C 7114 5382 165 165 2.32% 3.07%
D 7114 5382 1692 1692 23.78% 31.44%

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 15 169 173759 1321.71 643 632 131.0
A 13 6 12499 90.6 643 632 131.0
A 13 254 10550 75.72 643 632 131.0
B 5 172 1876893 16480.04 598 585 113.9
B 0 219 146842 1284.61 598 585 113.9
B 5 200 56034 487.02 598 585 113.9
C 7 221 1386091 9826.63 611 617 141.0
C 0 10 154767 1093.33 611 617 141.0
C 1 241 34845 242.77 611 617 141.0
D 7 223 3423988 23311.32 565 555 146.9
D 8 195 2068770 14083.18 565 555 146.9
D 2 250 490129 3333.68 565 555 146.9

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