ASTROSAT CZTI

Data Quality Report

Orbit 33555

Creation date: 2024-06-27T20:50:06.461136
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_060T01_9000004808_33555cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33555cztM0_level2_quad_clean.evt
Size (bytes)552,816,00054,619,200
Size527.2 MB 52.1 MB
Events in quadrant A2,434,731348,842
Events in quadrant B4,116,352329,735
Events in quadrant C3,963,685331,389
Events in quadrant D5,885,548288,944

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102683
B0154722
C0149932
D0208822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A505450.098932%
B50544579.042343%
C50542795.520380%
D505493818.559557%

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 7177 5055 0 0 0.00% 0.00%
B 7177 5055 370 370 5.16% 7.32%
C 7177 5054 275 275 3.83% 5.44%
D 7177 5055 961 961 13.39% 19.01%

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 13702 105.15 624 614 124.5
A 13 254 7829 57.96 624 614 124.5
A 10 83 6092 44.01 624 614 124.5
B 5 172 1295574 11200.24 605 591 115.6
B 4 170 195624 1686.83 605 591 115.6
B 4 251 102182 878.66 605 591 115.6
C 1 23 754179 5350.87 606 612 140.8
C 0 10 303123 2148.05 606 612 140.8
C 15 214 215686 1527.18 606 612 140.8
D 2 31 2279546 16660.52 556 541 136.8
D 8 195 1001255 7315.66 556 541 136.8
D 15 0 236894 1727.84 556 541 136.8

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