ASTROSAT CZTI

Data Quality Report

Orbit 44607

Creation date: 2024-06-27T23:04:28.223550
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_009T03_9000006006_44607cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44607cztM0_level2_quad_clean.evt
Size (bytes)653,771,520101,995,200
Size623.5 MB 97.3 MB
Events in quadrant A11,342,837424,539
Events in quadrant B3,978,086757,657
Events in quadrant C3,582,058753,637
Events in quadrant D4,760,795671,502

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0388052
B0164750
C0154210
D0189490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6911320446.360874%
B69114426.395601%
C69111572.271741%
D69114276.178556%

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 7696 6911 2937 2937 38.16% 42.50%
B 7696 6911 165 165 2.14% 2.39%
C 7696 6911 53 53 0.69% 0.77%
D 7696 6911 352 352 4.57% 5.09%

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 15 223 7442677 58548.88 610 597 127.1
A 10 83 1476519 11611.48 610 597 127.1
A 13 248 62621 487.96 610 597 127.1
B 5 172 740903 4591.26 803 778 161.2
B 0 168 24645 148.06 803 778 161.2
B 0 219 22435 134.35 803 778 161.2
C 12 2 340133 1791.4 802 809 189.4
C 12 249 41162 213.04 802 809 189.4
C 3 233 30117 154.73 802 809 189.4
D 13 249 800869 4050.05 786 764 197.6
D 1 52 423201 2138.33 786 764 197.6
D 12 233 187074 943.08 786 764 197.6

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