ASTROSAT CZTI

Data Quality Report

Orbit 47415

Creation date: 2024-07-04T22:53:13.271356
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_053T01_9000006326_47415cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47415cztM0_level2_quad_clean.evt
Size (bytes)510,117,120103,458,240
Size486.5 MB 98.7 MB
Events in quadrant A7,020,458681,975
Events in quadrant B3,129,350731,125
Events in quadrant C3,723,745671,050
Events in quadrant D4,522,323609,965

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251631
B0135221
C0156251
D0179701

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62793936.258958%
B6279751.194458%
C62793134.984870%
D62804587.292994%

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 7429 6280 174 174 2.34% 2.77%
B 7429 6279 23 23 0.31% 0.37%
C 7428 6278 254 254 3.42% 4.05%
D 7429 6279 428 428 5.76% 6.82%

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 3587608 24635.74 701 687 145.6
A 9 191 650099 4460.3 701 687 145.6
A 9 240 53330 361.56 701 687 145.6
B 5 255 104155 746.64 711 689 138.6
B 5 32 86537 619.5 711 689 138.6
B 0 200 45376 322.47 711 689 138.6
C 12 2 912896 5746.45 679 684 158.7
C 0 207 150100 941.24 679 684 158.7
C 3 233 13092 78.16 679 684 158.7
D 2 165 1023729 5976.17 681 656 171.2
D 12 128 369849 2156.6 681 656 171.2
D 2 249 218179 1270.64 681 656 171.2

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