ASTROSAT CZTI

Data Quality Report

Orbit 41050

Creation date: 2024-06-27T22:23:42.553169
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_029T02_9000005590_41050cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41050cztM0_level2_quad_clean.evt
Size (bytes)356,348,16091,992,960
Size339.8 MB 87.7 MB
Events in quadrant A2,988,598621,345
Events in quadrant B2,445,728640,049
Events in quadrant C2,943,036606,669
Events in quadrant D4,378,075526,315

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121443
B0111932
C0122022
D0168892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5591110.196745%
B559180.143087%
C5591661.180469%
D55914668.334824%

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 7293 5592 2 2 0.03% 0.04%
B 7293 5592 0 0 0.00% 0.00%
C 7293 5592 54 54 0.74% 0.97%
D 7293 5592 386 386 5.29% 6.90%

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 515390 3987.37 628 617 129.1
A 12 189 38494 293.39 628 617 129.1
A 13 254 8802 63.4 628 617 129.1
B 12 111 15668 124.16 621 604 121.3
B 11 111 14505 114.57 621 604 121.3
B 14 111 14181 111.9 621 604 121.3
C 15 214 258928 1822.89 605 608 141.7
C 14 254 186872 1314.41 605 608 141.7
C 0 10 129308 908.2 605 608 141.7
D 13 249 1805042 12374.94 593 574 145.8
D 1 47 114498 781.28 593 574 145.8
D 12 0 72187 491.12 593 574 145.8

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