ASTROSAT CZTI

Data Quality Report

Orbit 44078

Creation date: 2024-06-27T22:59:07.518906
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_029T01_9000005940_44078cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44078cztM0_level2_quad_clean.evt
Size (bytes)486,112,320119,808,000
Size463.6 MB 114.3 MB
Events in quadrant A5,021,343807,279
Events in quadrant B3,235,674846,896
Events in quadrant C3,356,921804,847
Events in quadrant D5,833,058678,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197122
B0145482
C0151072
D0223212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70441822.583759%
B7044791.121522%
C7045741.050390%
D704577711.029099%

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 8859 7046 36 36 0.41% 0.51%
B 8859 7046 0 0 0.00% 0.00%
C 8860 7046 37 37 0.42% 0.53%
D 8860 7047 545 545 6.15% 7.73%

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 1252486 7439.85 818 804 168.2
A 15 222 432982 2568.81 818 804 168.2
A 12 227 95141 560.73 818 804 168.2
B 12 111 21533 126.4 821 797 164.1
B 11 111 19537 114.23 821 797 164.1
B 14 111 19402 113.41 821 797 164.1
C 14 254 177365 933.72 800 806 189.1
C 4 254 30660 157.88 800 806 189.1
C 12 249 6983 32.67 800 806 189.1
D 1 52 1546602 8001.53 766 743 193.2
D 13 249 822210 4252.0 766 743 193.2
D 1 47 212587 1096.53 766 743 193.2

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