ASTROSAT CZTI

Data Quality Report

Orbit 29659

Creation date: 2024-06-27T20:06:34.207278
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/AS1C05_019T01_9000004270_29659cztM0_level2.evt modeM0/AS1C05_019T01_9000004270_29659cztM0_level2_quad_clean.evt
Size (bytes)582,384,960125,853,120
Size555.4 MB 120.0 MB
Events in quadrant A3,082,751850,807
Events in quadrant B3,657,510884,718
Events in quadrant C3,392,265866,747
Events in quadrant D7,088,870780,348

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131922
B0148832
C0141852
D0253885

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6144550.895182%
B61441342.180990%
C61441582.571615%
D6143107517.499593%

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 7454 6145 0 0 0.00% 0.00%
B 7454 6145 45 45 0.60% 0.73%
C 7454 6144 6 6 0.08% 0.10%
D 7453 6143 917 917 12.30% 14.93%

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 13 254 10917 64.19 795 780 157.9
A 12 96 9249 53.62 795 780 157.9
A 3 137 7280 41.16 795 780 157.9
B 10 245 381699 2581.73 804 785 147.5
B 0 229 67281 450.69 804 785 147.5
B 5 172 35962 238.42 804 785 147.5
C 14 238 129620 712.73 794 800 180.7
C 10 22 116299 639.03 794 800 180.7
C 3 233 26239 140.75 794 800 180.7
D 7 80 2821264 16449.63 731 713 171.5
D 7 238 666292 3881.7 731 713 171.5
D 8 195 455997 2655.25 731 713 171.5

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