ASTROSAT CZTI

Data Quality Report

Orbit 11738

Creation date: 2024-06-27T16:17:37.436279
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/AS1G08_006T03_9000001732_11738cztM0_level2.evt modeM0/AS1G08_006T03_9000001732_11738cztM0_level2_quad_clean.evt
Size (bytes)543,853,440117,233,280
Size518.7 MB 111.8 MB
Events in quadrant A3,798,093788,443
Events in quadrant B5,430,544760,758
Events in quadrant C3,093,485808,416
Events in quadrant D3,726,888758,346

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152773
B0202392
C0129932
D0150742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6223851.365901%
B622387113.996465%
C6223240.385666%
D6223540.867749%

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 7575 6226 16 16 0.21% 0.26%
B 7575 6226 604 604 7.97% 9.70%
C 7575 6226 0 0 0.00% 0.00%
D 7575 6226 18 18 0.24% 0.29%

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 314877 1998.64 792 778 157.2
A 1 162 129604 819.73 792 778 157.2
A 8 15 83210 524.52 792 778 157.2
B 3 64 1165849 8468.63 759 745 137.6
B 4 239 798394 5797.76 759 745 137.6
B 15 204 236567 1714.09 759 745 137.6
C 13 61 5887 28.48 792 796 178.7
C 12 4 2909 11.82 792 796 178.7
C 3 202 1985 6.65 792 796 178.7
D 8 195 416599 2264.62 779 762 183.6
D 1 52 158389 858.43 779 762 183.6
D 5 222 82039 442.63 779 762 183.6

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