ASTROSAT CZTI

Data Quality Report

Orbit 44066

Creation date: 2024-06-27T22:58:57.645657
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_029T01_9000005940_44066cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44066cztM0_level2_quad_clean.evt
Size (bytes)509,307,840110,525,760
Size485.7 MB 105.4 MB
Events in quadrant A4,642,595771,030
Events in quadrant B3,075,317808,388
Events in quadrant C3,490,974743,814
Events in quadrant D7,125,668558,201

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184222
B0137562
C0151302
D0257992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66731221.828263%
B6673560.839203%
C6673981.468605%
D6674137120.542403%

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 7798 6674 20 20 0.26% 0.30%
B 7798 6674 5 5 0.06% 0.07%
C 7798 6674 68 68 0.87% 1.02%
D 7799 6674 1172 1172 15.03% 17.56%

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 1219093 7680.19 771 755 158.6
A 15 222 238149 1496.49 771 755 158.6
A 12 227 149185 935.68 771 755 158.6
B 4 216 24653 156.2 773 750 153.0
B 12 111 19601 123.18 773 750 153.0
B 11 111 18241 114.3 773 750 153.0
C 1 241 410294 2307.6 747 754 177.5
C 14 254 124968 699.9 747 754 177.5
C 14 96 14107 75.24 747 754 177.5
D 13 249 2712899 16396.76 655 635 165.4
D 5 235 1017876 6149.64 655 635 165.4
D 1 52 592051 3575.35 655 635 165.4

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