ASTROSAT CZTI

Data Quality Report

Orbit 09232

Creation date: 2024-06-27T15:43:01.770326
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_09232cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09232cztM0_level2_quad_clean.evt
Size (bytes)458,225,28088,122,240
Size437.0 MB 84.0 MB
Events in quadrant A3,839,302561,625
Events in quadrant B3,307,843571,884
Events in quadrant C2,899,241553,809
Events in quadrant D3,400,845539,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01542518
B01386413
C01296612
D01472728

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63341382.178718%
B6333380.600032%
C6333110.173693%
D6328550.869153%

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 7553 6338 87 87 1.15% 1.37%
B 7553 6338 11 11 0.15% 0.17%
C 7553 6338 0 0 0.00% 0.00%
D 7553 6339 46 46 0.61% 0.73%

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 689988 4414.74 767 753 156.1
A 1 162 80817 512.83 767 753 156.1
A 13 251 29148 181.88 767 753 156.1
B 4 48 117057 782.99 778 760 148.5
B 0 245 75894 505.85 778 760 148.5
B 0 214 25368 165.68 778 760 148.5
C 13 61 5740 28.96 741 744 172.5
C 8 222 4643 22.6 741 744 172.5
C 14 67 3123 13.79 741 744 172.5
D 1 52 392127 1961.2 731 717 199.6
D 5 97 79601 395.26 731 717 199.6
D 7 71 62611 310.13 731 717 199.6

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