ASTROSAT CZTI

Data Quality Report

Orbit 10629

Creation date: 2024-06-27T16:01:43.461261
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/AS1T01_191T01_9000001536_10629cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10629cztM0_level2_quad_clean.evt
Size (bytes)537,733,440104,829,120
Size512.8 MB 100.0 MB
Events in quadrant A3,305,822690,969
Events in quadrant B4,123,935688,412
Events in quadrant C3,696,148687,836
Events in quadrant D4,701,366636,921

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141562
B0165651
C0155181
D0183881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67471962.904995%
B67473154.668742%
C67472163.201423%
D67473134.639099%

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 6812 6748 1 1 0.01% 0.01%
B 6812 6748 68 68 1.00% 1.01%
C 6812 6748 37 37 0.54% 0.55%
D 6812 6748 138 138 2.03% 2.05%

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 104927 607.65 815 800 171.4
A 1 162 37370 213.41 815 800 171.4
A 1 178 12339 67.34 815 800 171.4
B 4 239 611407 3883.95 810 792 157.2
B 0 219 120328 760.34 810 792 157.2
B 0 85 86296 543.87 810 792 157.2
C 4 254 427334 2298.46 793 800 185.6
C 15 48 148235 794.48 793 800 185.6
C 8 128 8241 40.1 793 800 185.6
D 2 16 470754 2443.98 782 762 192.3
D 8 195 313996 1628.83 782 762 192.3
D 1 52 288537 1496.44 782 762 192.3

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