ASTROSAT CZTI

Data Quality Report

Orbit 13345

Creation date: 2024-06-27T16:39:27.907338
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_082T01_9000001986_13345cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13345cztM0_level2_quad_clean.evt
Size (bytes)433,863,360102,055,680
Size413.8 MB 97.3 MB
Events in quadrant A3,077,465677,290
Events in quadrant B3,321,374695,741
Events in quadrant C3,217,276663,265
Events in quadrant D3,108,195627,841

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130543
B0137822
C0133352
D0131682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6112410.670812%
B6112681.112565%
C6112560.916230%
D6112340.556283%

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 7503 6114 0 0 0.00% 0.00%
B 7503 6114 6 6 0.08% 0.10%
C 7503 6114 23 23 0.31% 0.38%
D 7503 6114 13 13 0.17% 0.21%

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 69 7355 41.43 797 783 158.6
A 0 226 7252 40.78 797 783 158.6
A 12 194 6023 33.04 797 783 158.6
B 10 245 78303 518.3 805 787 149.6
B 3 64 42944 281.88 805 787 149.6
B 4 173 18343 117.39 805 787 149.6
C 3 233 123321 701.91 765 772 174.6
C 14 234 101762 578.43 765 772 174.6
C 6 96 10109 53.48 765 772 174.6
D 8 195 83788 465.19 751 730 178.5
D 2 136 68793 381.21 751 730 178.5
D 14 34 33926 185.93 751 730 178.5

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