ASTROSAT CZTI

Data Quality Report

Orbit 48465

Creation date: 2024-09-14T11:23:52.225004
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_9000006426_48465cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48465cztM0_level2_quad_clean.evt
Size (bytes)549,362,880120,574,080
Size523.9 MB 115.0 MB
Events in quadrant A7,662,536788,093
Events in quadrant B4,774,730797,394
Events in quadrant C3,448,600798,627
Events in quadrant D3,854,896733,057

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0289740
B0196250
C0160320
D0169890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76683444.486176%
B76685096.637976%
C7669300.391185%
D7669740.964924%

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 7668 7668 2 2 0.03% 0.03%
B 7668 7668 261 261 3.40% 3.40%
C 7669 7669 3 3 0.04% 0.04%
D 7669 7669 43 43 0.56% 0.56%

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 4252281 23075.11 874 853 184.2
A 13 254 15240 78.09 874 853 184.2
A 4 0 14585 74.53 874 853 184.2
B 12 16 1125244 6491.8 853 825 173.2
B 5 255 162461 933.2 853 825 173.2
B 0 186 93836 537.0 853 825 173.2
C 15 208 34961 166.65 860 863 204.6
C 12 250 22662 106.54 860 863 204.6
C 14 67 13076 59.69 860 863 204.6
D 7 96 140812 644.96 865 839 217.0
D 2 249 133006 608.99 865 839 217.0
D 5 222 77278 352.21 865 839 217.0

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