ASTROSAT CZTI

Data Quality Report

Orbit 01190

Creation date: 2024-06-27T14:08:53.143353
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/AS1G04_007T02_9000000220_01190cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01190cztM0_level2_quad_clean.evt
Size (bytes)1,463,555,520109,607,040
Size1.4 GB 104.5 MB
Events in quadrant A9,412,710755,103
Events in quadrant B9,903,999749,466
Events in quadrant C9,324,332718,601
Events in quadrant D15,179,222564,178

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0333812
B0348511
C0330871
D0509541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7636771.008381%
B7636480.628601%
C7636640.838135%
D7636255533.459927%

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 7781 7639 428 428 5.50% 5.60%
B 7781 7639 453 453 5.82% 5.93%
C 7781 7639 353 353 4.54% 4.62%
D 7781 7639 3549 3549 45.61% 46.46%

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 4 32 33764 53.41 2435 2446 586.3
A 0 51 15581 22.4 2435 2446 586.3
A 12 243 15416 22.12 2435 2446 586.3
B 8 4 136804 226.76 2493 2504 592.3
B 6 53 79065 129.27 2493 2504 592.3
B 5 249 37204 58.59 2493 2504 592.3
C 15 241 438393 688.85 2255 2329 633.0
C 3 79 38516 57.16 2255 2329 633.0
C 3 111 33180 48.74 2255 2329 633.0
D 1 239 6355713 11178.38 1828 1897 568.4
D 10 84 1311527 2304.05 1828 1897 568.4
D 1 238 188628 328.52 1828 1897 568.4

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