ASTROSAT CZTI

Data Quality Report

Orbit 47383

Creation date: 2024-07-02T20:35:52.996182
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_093T25_9000006324_47383cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47383cztM0_level2_quad_clean.evt
Size (bytes)488,468,160106,032,960
Size465.8 MB 101.1 MB
Events in quadrant A6,681,907708,544
Events in quadrant B3,194,529732,736
Events in quadrant C2,967,241697,027
Events in quadrant D4,725,975611,979

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246971
B0139991
C0136281
D0186223

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65982063.122158%
B6599520.787998%
C6599220.333384%
D65984586.941497%

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 7468 6598 17 17 0.23% 0.26%
B 7469 6599 4 4 0.05% 0.06%
C 7469 6600 5 5 0.07% 0.08%
D 7468 6598 394 394 5.28% 5.97%

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 3624379 23196.67 747 732 156.2
A 9 191 79524 504.38 747 732 156.2
A 15 235 72510 459.48 747 732 156.2
B 0 190 61393 406.36 745 722 149.3
B 0 200 49366 325.81 745 722 149.3
B 4 171 31720 207.62 745 722 149.3
C 0 207 74045 422.53 730 734 173.5
C 3 233 28429 159.62 730 734 173.5
C 12 249 16472 90.71 730 734 173.5
D 12 2 951642 5303.82 713 691 179.3
D 12 33 346984 1931.41 713 691 179.3
D 2 249 319090 1775.84 713 691 179.3

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