ASTROSAT CZTI

Data Quality Report

Orbit 43681

Creation date: 2024-06-27T22:54:28.220939
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_018T01_9000005896_43681cztM0_level2.fits modeM0/AS1A12_018T01_9000005896_43681cztM0_level2_quad_clean.evt
Size (bytes)1,077,166,080105,618,240
Size1.0 GB 100.7 MB
Events in quadrant A12,370,586791,179
Events in quadrant B4,305,843821,963
Events in quadrant C15,282,233380,055
Events in quadrant D7,342,017684,190

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0419030
B0178900
C0505140
D0270440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7422168722.729722%
B74231772.384481%
C7423579678.081638%
D742394712.757645%

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 7422 7422 858 858 11.56% 11.56%
B 7423 7423 99 99 1.33% 1.33%
C 7422 7422 4186 4186 56.40% 56.40%
D 7423 7423 577 577 7.77% 7.77%

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 15 222 7006136 42634.86 794 775 164.3
A 10 83 890218 5413.18 794 775 164.3
A 15 223 711692 4326.66 794 775 164.3
B 5 235 345244 2157.06 822 794 159.7
B 5 172 134305 836.09 822 794 159.7
B 0 200 109920 683.38 822 794 159.7
C 15 142 8542794 90579.51 397 399 94.3
C 15 158 3724108 39484.45 397 399 94.3
C 15 157 757334 8026.18 397 399 94.3
D 14 210 630024 3133.42 784 758 200.8
D 1 52 552603 2747.91 784 758 200.8
D 2 249 469307 2333.14 784 758 200.8

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