ASTROSAT CZTI

Data Quality Report

Orbit 11565

Creation date: 2024-06-27T16:14:58.684924
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/AS1G08_009T01_9000001696_11565cztM0_level2.evt modeM0/AS1G08_009T01_9000001696_11565cztM0_level2_quad_clean.evt
Size (bytes)319,446,72055,411,200
Size304.6 MB 52.8 MB
Events in quadrant A2,974,817366,367
Events in quadrant B2,450,585381,657
Events in quadrant C1,300,467384,675
Events in quadrant D2,753,489340,647

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109240
B092630
C057640
D0100690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A286136812.862635%
B28612137.444949%
C286100.000000%
D286143015.029710%

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 2862 2862 322 322 11.25% 11.25%
B 2862 2862 168 168 5.87% 5.87%
C 2862 2862 0 0 0.00% 0.00%
D 2862 2862 405 405 14.15% 14.15%

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 8 5 1473503 20980.9 340 334 70.2
A 1 162 65955 934.58 340 334 70.2
A 1 178 40714 575.09 340 334 70.2
B 4 239 749429 11356.81 343 337 66.0
B 15 204 239670 3628.47 343 337 66.0
B 11 51 80300 1212.3 343 337 66.0
C 13 61 2489 27.72 333 336 77.7
C 3 202 834 6.41 333 336 77.7
C 3 203 741 5.21 333 336 77.7
D 1 52 991071 12849.32 316 307 77.1
D 13 137 355514 4606.72 316 307 77.1
D 2 120 146488 1895.84 316 307 77.1

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