ASTROSAT CZTI

Data Quality Report

Orbit 11057

Creation date: 2024-06-27T16:07:39.040700
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/AS1C03_006T01_9000001608_11057cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11057cztM0_level2_quad_clean.evt
Size (bytes)591,672,96053,884,800
Size564.3 MB 51.4 MB
Events in quadrant A7,655,624287,027
Events in quadrant B3,766,323319,249
Events in quadrant C2,826,107317,757
Events in quadrant D3,278,811301,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267432
B0148321
C0119301
D0132091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5794131922.764929%
B57941953.365551%
C5794310.535036%
D5794721.242665%

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 7103 5793 971 971 13.67% 16.76%
B 7104 5795 92 92 1.30% 1.59%
C 7104 5795 0 0 0.00% 0.00%
D 7104 5794 35 35 0.49% 0.60%

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 14 238 3692427 26870.38 674 661 137.4
A 15 174 1357238 9873.8 674 661 137.4
A 11 29 9397 63.58 674 661 137.4
B 4 239 811686 5851.34 740 725 138.6
B 0 214 22686 158.46 740 725 138.6
B 15 204 19616 136.3 740 725 138.6
C 13 61 5480 28.63 723 729 166.0
C 14 67 4252 21.23 723 729 166.0
C 14 234 3390 16.03 723 729 166.0
D 8 195 250192 1474.71 709 691 169.2
D 11 129 142546 838.46 709 691 169.2
D 13 152 57628 336.53 709 691 169.2

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