ASTROSAT CZTI

Data Quality Report

Orbit 47580

Creation date: 2024-07-16T03:09:39.206987
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/AS1A13_080T03_9000006336_47580cztM0_level2.fits modeM0/AS1A13_080T03_9000006336_47580cztM0_level2_quad_clean.evt
Size (bytes)868,584,960101,430,720
Size828.3 MB 96.7 MB
Events in quadrant A8,803,369737,546
Events in quadrant B4,038,558788,567
Events in quadrant C3,081,416777,009
Events in quadrant D15,668,697264,099

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0312791
B0168131
C0147161
D0515369

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A724073910.207182%
B72401902.624309%
C7241170.234774%
D7240474865.580110%

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 7560 7240 308 308 4.07% 4.25%
B 7560 7240 53 53 0.70% 0.73%
C 7561 7242 0 0 0.00% 0.00%
D 7559 7239 4746 4746 62.79% 65.56%

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 4178136 25586.12 782 765 163.3
A 9 191 1515453 9277.36 782 765 163.3
A 13 248 58814 355.55 782 765 163.3
B 0 190 250094 1596.62 796 770 156.2
B 0 200 230770 1472.87 796 770 156.2
B 5 32 201977 1288.49 796 770 156.2
C 3 233 20839 109.67 782 785 182.9
C 14 254 7598 37.26 782 785 182.9
C 12 2 6300 30.16 782 785 182.9
D 2 165 13176628 114136.08 455 438 115.4
D 2 249 373303 3229.87 455 438 115.4
D 8 176 76448 658.42 455 438 115.4

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