ASTROSAT CZTI

Data Quality Report

Orbit 27303

Creation date: 2024-06-27T19:38:38.338038
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/AS1T03_243T01_9000003918_27303cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27303cztM0_level2_quad_clean.evt
Size (bytes)581,745,60099,826,560
Size554.8 MB 95.2 MB
Events in quadrant A3,668,894653,249
Events in quadrant B3,769,882656,321
Events in quadrant C3,431,675625,288
Events in quadrant D6,270,152597,172

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154010
B0156380
C0146770
D0233620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7053731.035021%
B70531732.452857%
C70531031.460371%
D70534826.833971%

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 7598 7054 25 25 0.33% 0.35%
B 7598 7054 48 48 0.63% 0.68%
C 7598 7054 0 0 0.00% 0.00%
D 7598 7054 428 428 5.63% 6.07%

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 13 248 193757 1078.09 888 871 178.9
A 12 189 33489 182.31 888 871 178.9
A 13 254 11632 60.15 888 871 178.9
B 5 172 245500 1459.36 876 853 167.6
B 0 190 70714 416.73 876 853 167.6
B 12 111 20253 115.72 876 853 167.6
C 14 238 134564 669.96 843 849 199.6
C 15 208 6673 29.18 843 849 199.6
C 13 61 5811 24.86 843 849 199.6
D 1 52 2717397 13177.3 831 811 206.2
D 2 250 199116 961.91 831 811 206.2
D 10 103 33539 158.75 831 811 206.2

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