ASTROSAT CZTI

Data Quality Report

Orbit 43666

Creation date: 2024-06-27T22:54:17.193966
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_43666cztM0_level2.fits modeM0/AS1A12_018T01_9000005896_43666cztM0_level2_quad_clean.evt
Size (bytes)1,100,545,920106,352,640
Size1.0 GB 101.4 MB
Events in quadrant A10,134,248803,905
Events in quadrant B4,319,722821,535
Events in quadrant C15,956,931438,704
Events in quadrant D9,762,995642,267

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0352921
B0179291
C0524351
D0341656

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73366488.833152%
B73372192.984871%
C7337521671.091727%
D7336184425.136314%

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 7526 7338 116 116 1.54% 1.58%
B 7527 7339 54 54 0.72% 0.74%
C 7527 7339 4614 4614 61.30% 62.87%
D 7526 7338 1527 1527 20.29% 20.81%

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 5384030 32806.09 804 786 164.1
A 10 83 902633 5495.95 804 786 164.1
A 0 228 354619 2156.3 804 786 164.1
B 4 206 270791 1719.73 814 789 157.0
B 0 230 159564 1011.29 814 789 157.0
B 5 235 148281 939.42 814 789 157.0
C 15 142 11790953 105475.38 476 478 111.8
C 15 158 1611515 14412.03 476 478 111.8
C 15 157 294803 2632.97 476 478 111.8
D 12 6 2167278 10566.63 723 705 205.0
D 7 80 914873 4458.5 723 705 205.0
D 1 52 597810 2912.15 723 705 205.0

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