ASTROSAT CZTI

Data Quality Report

Orbit 09235

Creation date: 2024-06-27T15:43:04.541720
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/AS1A03_051T01_9000001288_09235cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09235cztM0_level2_quad_clean.evt
Size (bytes)407,010,24069,235,200
Size388.2 MB 66.0 MB
Events in quadrant A3,110,483429,753
Events in quadrant B3,496,891444,414
Events in quadrant C2,571,215433,079
Events in quadrant D2,777,105408,160

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012616
B012612
C012616
D012622

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143341740
B0156911903
C0125881400
D0135011582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201
B0200
C0200
D0211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5443460.845122%
B54172464.541259%
C546280.146466%
D5445230.422406%

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 7504 5863 15 15 0.20% 0.26%
B 7504 5844 209 209 2.79% 3.58%
C 7503 5848 0 0 0.00% 0.00%
D 7504 5871 10 10 0.13% 0.17%

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 8 5 335123 2418.53 677 663 138.3
A 13 251 82935 594.92 677 663 138.3
A 1 162 46780 333.48 677 663 138.3
B 6 51 697694 5505.38 669 655 126.6
B 8 234 60493 472.61 669 655 126.6
B 0 245 51738 403.47 669 655 126.6
C 13 61 5071 29.0 658 661 152.1
C 14 67 3586 19.23 658 661 152.1
C 8 222 2776 13.91 658 661 152.1
D 1 52 87304 542.08 650 630 159.9
D 7 71 68863 426.74 650 630 159.9
D 2 152 45203 278.77 650 630 159.9

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