ASTROSAT CZTI

Data Quality Report

Orbit 03310

Creation date: 2024-06-27T14:27:25.624400
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/AS1G05_241T02_9000000448_03310cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03310cztM0_level2_quad_clean.evt
Size (bytes)512,303,04078,220,800
Size488.6 MB 74.6 MB
Events in quadrant A3,597,321475,001
Events in quadrant B4,660,084484,304
Events in quadrant C3,097,390484,641
Events in quadrant D3,705,539457,282

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153353
B0184672
C0139462
D0160332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67021311.954640%
B67021492.223217%
C6702280.417786%
D67022293.416890%

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 8662 6704 72 72 0.83% 1.07%
B 8662 6704 9 9 0.10% 0.13%
C 8662 6704 1 1 0.01% 0.01%
D 8662 6704 176 176 2.03% 2.63%

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 8 15 256178 1564.78 792 773 163.2
A 0 50 254053 1551.76 792 773 163.2
A 0 118 28832 171.91 792 773 163.2
B 15 204 1462438 9395.98 801 781 155.6
B 15 85 28853 180.45 801 781 155.6
B 2 249 25890 161.41 801 781 155.6
C 12 4 20904 109.32 773 779 184.1
C 1 16 11337 57.35 773 779 184.1
C 6 80 11032 55.7 773 779 184.1
D 13 223 483190 2600.03 760 737 185.6
D 12 233 230179 1236.5 760 737 185.6
D 10 172 40357 213.52 760 737 185.6

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