ASTROSAT CZTI

Data Quality Report

Orbit 28949

Creation date: 2024-06-27T19:58:25.071514
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/AS1A10_123T08_9000004152_28949cztM0_level2.evt modeM0/AS1A10_123T08_9000004152_28949cztM0_level2_quad_clean.evt
Size (bytes)778,066,560106,401,600
Size742.0 MB 101.5 MB
Events in quadrant A3,138,929770,432
Events in quadrant B3,253,165807,594
Events in quadrant C3,330,288772,441
Events in quadrant D13,420,310435,926

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133262
B0136082
C0139172
D0441362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6218350.562882%
B6219520.836147%
C62191572.524522%
D6219443571.313716%

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 7543 6219 0 0 0.00% 0.00%
B 7544 6220 0 0 0.00% 0.00%
C 7544 6220 0 0 0.00% 0.00%
D 7544 6220 4419 4419 58.58% 71.05%

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 13 254 12053 70.6 812 800 159.4
A 3 137 7487 41.95 812 800 159.4
A 0 226 6926 38.43 812 800 159.4
B 12 111 17943 111.84 823 805 153.2
B 11 111 16312 101.2 823 805 153.2
B 14 111 14908 92.04 823 805 153.2
C 14 238 149961 813.97 796 803 183.2
C 3 233 32579 173.4 796 803 183.2
C 14 254 28842 153.01 796 803 183.2
D 8 195 6698787 53907.97 525 511 124.3
D 1 52 2412209 19409.43 525 511 124.3
D 7 80 1875940 15093.52 525 511 124.3

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