ASTROSAT CZTI

Data Quality Report

Orbit 47465

Creation date: 2024-07-08T08:53:39.873625
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_089T01_9000006330_47465cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47465cztM0_level2_quad_clean.evt
Size (bytes)873,682,56095,330,880
Size833.2 MB 90.9 MB
Events in quadrant A7,259,746763,330
Events in quadrant B4,682,922755,544
Events in quadrant C3,311,516758,350
Events in quadrant D16,521,038101,087

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266110
B0187800
C0151261
D0539980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72951031.411926%
B72964065.564693%
C729520.027416%
D7295638087.457162%

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 7295 7295 16 16 0.22% 0.22%
B 7296 7296 276 276 3.78% 3.78%
C 7295 7295 0 0 0.00% 0.00%
D 7295 7295 5597 5597 76.72% 76.72%

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 3752333 21728.54 812 793 172.7
A 9 191 302657 1748.37 812 793 172.7
A 2 79 33022 186.67 812 793 172.7
B 5 32 1240002 7786.96 798 773 159.1
B 0 190 85659 533.4 798 773 159.1
B 0 198 69782 433.63 798 773 159.1
C 3 233 135604 709.3 804 806 190.0
C 0 207 16116 80.56 804 806 190.0
C 12 2 7374 34.56 804 806 190.0
D 2 165 13852812 123350.49 436 422 112.3
D 6 112 646428 5752.45 436 422 112.3
D 2 249 170208 1511.88 436 422 112.3

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