ASTROSAT CZTI

Data Quality Report

Orbit 44600

Creation date: 2024-06-27T23:04:22.671507
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/AS1A13_009T03_9000006006_44600cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44600cztM0_level2_quad_clean.evt
Size (bytes)578,131,200103,006,080
Size551.3 MB 98.2 MB
Events in quadrant A6,791,588676,321
Events in quadrant B5,693,993655,650
Events in quadrant C3,456,459707,305
Events in quadrant D4,939,065612,821

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254032
B0213962
C0150542
D0191662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66966509.707288%
B669691713.694743%
C66961081.612903%
D66965528.243728%

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 7696 6696 518 518 6.73% 7.74%
B 7696 6696 907 907 11.79% 13.55%
C 7696 6697 97 97 1.26% 1.45%
D 7696 6696 531 531 6.90% 7.93%

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 10 83 1867099 12644.68 717 704 147.6
A 15 223 1119027 7576.55 717 704 147.6
A 9 191 948638 6422.18 717 704 147.6
B 14 167 2809385 19942.81 710 687 140.8
B 5 172 49281 345.03 710 687 140.8
B 12 111 17840 121.79 710 687 140.8
C 12 2 535557 3108.09 728 734 172.1
C 14 254 49894 285.69 728 734 172.1
C 3 233 18084 100.83 728 734 172.1
D 1 52 1097609 6244.43 702 683 175.7
D 13 249 525852 2989.61 702 683 175.7
D 2 249 345999 1965.77 702 683 175.7

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