ASTROSAT CZTI

Data Quality Report

Orbit 34059

Creation date: 2024-06-27T20:56:00.027267
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/AS1A06_003T04_9000004866_34059cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34059cztM0_level2_quad_clean.evt
Size (bytes)622,451,52049,754,880
Size593.6 MB 47.4 MB
Events in quadrant A5,161,741271,060
Events in quadrant B4,809,138284,144
Events in quadrant C3,899,074302,688
Events in quadrant D4,620,024273,926

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186133
B0177332
C0150542
D0174942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5333135425.389087%
B533372813.650853%
C53331472.756422%
D53343877.255343%

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 7335 5332 1155 1155 15.75% 21.66%
B 7336 5333 608 608 8.29% 11.40%
C 7336 5334 129 129 1.76% 2.42%
D 7337 5335 358 358 4.88% 6.71%

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 15 169 2918250 25594.73 573 563 114.0
A 10 83 16053 135.88 573 563 114.0
A 7 16 12550 105.15 573 563 114.0
B 5 172 622484 4972.59 665 649 125.1
B 5 31 428535 3421.65 665 649 125.1
B 5 15 419629 3350.43 665 649 125.1
C 0 10 545157 3604.43 659 666 151.1
C 3 233 324641 2144.65 659 666 151.1
C 15 214 231953 1531.08 659 666 151.1
D 12 128 577503 3639.89 646 630 158.5
D 13 249 447960 2822.52 646 630 158.5
D 8 195 360816 2272.66 646 630 158.5

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