ASTROSAT CZTI

Data Quality Report

Orbit 47219

Creation date: 2024-06-27T23:33:02.197370
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/AS1C09_005T01_9000006304_47219cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47219cztM0_level2_quad_clean.evt
Size (bytes)524,963,520117,141,120
Size500.6 MB 111.7 MB
Events in quadrant A7,930,191760,585
Events in quadrant B4,031,720793,098
Events in quadrant C3,192,353777,068
Events in quadrant D3,707,758703,966

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291250
B0167770
C0150900
D0164410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73523755.100653%
B73531081.468788%
C7353100.135999%
D73531301.767986%

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 7352 7352 242 242 3.29% 3.29%
B 7353 7353 81 81 1.10% 1.10%
C 7353 7353 7 7 0.10% 0.10%
D 7353 7353 133 133 1.81% 1.81%

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 3788549 22781.84 802 784 166.3
A 9 191 530004 3183.04 802 784 166.3
A 14 248 455405 2734.36 802 784 166.3
B 15 201 365875 2307.79 804 777 158.2
B 0 183 152004 955.91 804 777 158.2
B 0 190 77048 482.11 804 777 158.2
C 14 254 39474 206.76 798 801 187.0
C 15 208 25717 133.21 798 801 187.0
C 3 233 8837 42.96 798 801 187.0
D 12 233 436529 2193.98 798 772 198.6
D 2 249 65111 323.94 798 772 198.6
D 12 218 52536 260.62 798 772 198.6

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