ASTROSAT CZTI

Data Quality Report

Orbit 20240905_A13_037T05_9000006424_level2

Creation date: 2024-09-18T12:26:23.862820
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_037T05_9000006424cztM0_level2.fits modeM0/AS1A13_037T05_9000006424cztM0_level2_quad_clean.evt
Size (bytes)443,920,320510,019,200
Size423.4 MB 486.4 MB
Events in quadrant A2,559,7003,045,260
Events in quadrant B2,542,4263,158,072
Events in quadrant C2,635,3683,060,023
Events in quadrant D2,274,1742,752,042

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010140
B010140
C010140
D010140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0650
B0650
C0650
D0650

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01936930
B01082380
C01035240
D01105360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5000820694.137338%
B500078491.697762%
C500093700.739867%
D500119491.897583%

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 73337 50004 0 0 0.00% 0.00%
B 73338 49989 0 0 0.00% 0.00%
C 73338 50008 0 0 0.00% 0.00%
D 73338 49985 0 0 0.00% 0.00%

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 15 236 2050 8.24 668 624 173.0
A 7 110 2009 8.0 668 624 173.0
A 14 95 1906 7.41 668 624 173.0
B 2 9 2491 14.1 671 639 131.4
B 2 8 1999 10.35 671 639 131.4
B 3 17 1809 8.91 671 639 131.4
C 1 81 2030 7.62 696 648 181.3
C 3 202 2002 7.47 696 648 181.3
C 3 203 1959 7.23 696 648 181.3
D 8 176 1637 5.75 651 588 182.3
D 6 38 1632 5.73 651 588 182.3
D 10 113 1617 5.65 651 588 182.3

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