ASTROSAT CZTI

Data Quality Report

Orbit 44375

Creation date: 2024-06-27T23:02:49.337928
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_008T05_9000005996_44375cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44375cztM0_level2_quad_clean.evt
Size (bytes)518,690,880108,031,680
Size494.7 MB 103.0 MB
Events in quadrant A5,705,988735,111
Events in quadrant B3,254,678758,540
Events in quadrant C3,340,579723,098
Events in quadrant D6,379,481587,185

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222081
B0141701
C0147461
D0236605

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66972023.016276%
B6698731.089878%
C6698640.955509%
D669793914.021204%

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 7527 6698 106 106 1.41% 1.58%
B 7528 6699 10 10 0.13% 0.15%
C 7528 6700 48 48 0.64% 0.72%
D 7527 6699 853 853 11.33% 12.73%

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 1802178 11309.61 762 746 159.3
A 15 223 694385 4354.75 762 746 159.3
A 13 248 114920 716.8 762 746 159.3
B 0 190 75071 486.47 767 742 152.8
B 0 219 26798 170.53 767 742 152.8
B 4 173 22616 143.16 767 742 152.8
C 14 254 267894 1524.82 742 747 175.2
C 15 158 77481 437.98 742 747 175.2
C 14 96 49671 279.25 742 747 175.2
D 13 249 1276491 7187.76 698 675 177.5
D 1 52 846917 4767.6 698 675 177.5
D 5 235 415559 2337.4 698 675 177.5

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