ASTROSAT CZTI

Data Quality Report

Orbit 04614

Creation date: 2024-06-27T14:44:33.325417
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_154T01_9000000576_04614cztM0_level2.evt modeM0/AS1G05_154T01_9000000576_04614cztM0_level2_quad_clean.evt
Size (bytes)568,612,80076,256,640
Size542.3 MB 72.7 MB
Events in quadrant A3,574,081478,308
Events in quadrant B4,264,481480,592
Events in quadrant C3,308,254480,057
Events in quadrant D5,631,933415,334

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151413
B0169652
C0141012
D0212472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65132003.070782%
B65133285.036082%
C6513280.429909%
D651384512.974052%

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 7638 6514 81 81 1.06% 1.24%
B 7638 6514 217 217 2.84% 3.33%
C 7638 6514 1 1 0.01% 0.02%
D 7638 6514 725 725 9.49% 11.13%

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 0 118 464369 2969.1 760 744 156.1
A 8 15 114920 731.19 760 744 156.1
A 0 226 49774 313.99 760 744 156.1
B 10 16 553560 3766.5 766 747 146.8
B 14 167 477381 3247.47 766 747 146.8
B 5 200 77525 523.11 766 747 146.8
C 14 48 313261 1798.71 742 746 173.7
C 9 54 59015 335.37 742 746 173.7
C 7 247 25750 143.91 742 746 173.7
D 8 112 2520832 14887.4 689 670 169.3
D 13 235 258643 1523.93 689 670 169.3
D 2 136 97284 570.73 689 670 169.3

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