ASTROSAT CZTI

Data Quality Report

Orbit 43299

Creation date: 2024-06-27T22:50:18.946442
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/AS1A12_089T01_9000005864_43299cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43299cztM0_level2_quad_clean.evt
Size (bytes)332,049,60092,566,080
Size316.7 MB 88.3 MB
Events in quadrant A3,347,356624,042
Events in quadrant B2,911,551647,891
Events in quadrant C2,635,370613,127
Events in quadrant D2,987,761550,082

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133062
B0119152
C0107262
D0124372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5254731.389418%
B52541072.036544%
C5255120.228354%
D52541282.436239%

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 7227 5255 60 60 0.83% 1.14%
B 7227 5255 84 84 1.16% 1.60%
C 7228 5256 7 7 0.10% 0.13%
D 7227 5255 122 122 1.69% 2.32%

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 566603 4503.49 612 600 125.7
A 15 237 263728 2093.62 612 600 125.7
A 12 189 111704 884.02 612 600 125.7
B 4 36 242082 2058.26 613 597 117.3
B 5 172 154988 1315.93 613 597 117.3
B 0 189 48802 410.87 613 597 117.3
C 15 214 224013 1592.59 602 605 140.3
C 15 159 39631 278.2 602 605 140.3
C 14 254 12108 82.0 602 605 140.3
D 13 249 259716 1786.44 591 574 145.1
D 1 47 219426 1508.69 591 574 145.1
D 12 6 76115 520.75 591 574 145.1

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