ASTROSAT CZTI

Data Quality Report

Orbit 43737

Creation date: 2024-06-27T22:55:10.848018
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_003T01_9000005902_43737cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43737cztM0_level2_quad_clean.evt
Size (bytes)542,738,88099,866,880
Size517.6 MB 95.2 MB
Events in quadrant A3,909,179703,258
Events in quadrant B4,979,180668,983
Events in quadrant C3,209,844696,410
Events in quadrant D7,508,156519,573

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156471
B0189961
C0137671
D0266545

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62351742.790698%
B623675912.171264%
C62361031.651700%
D6235138722.245389%

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 7120 6236 45 45 0.63% 0.72%
B 7121 6237 490 490 6.88% 7.86%
C 7121 6237 27 27 0.38% 0.43%
D 7120 6236 1163 1163 16.33% 18.65%

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 789142 5244.14 721 706 150.3
A 2 79 81000 534.06 721 706 150.3
A 15 223 69653 458.59 721 706 150.3
B 0 200 1039694 7693.53 689 669 135.1
B 5 235 839255 6209.37 689 669 135.1
B 0 183 162842 1200.82 689 669 135.1
C 15 158 264112 1581.61 708 712 166.5
C 14 254 71207 423.29 708 712 166.5
C 3 233 42344 249.98 708 712 166.5
D 7 80 1893919 11406.04 649 631 166.0
D 5 235 1568065 9442.95 649 631 166.0
D 1 52 379438 2282.11 649 631 166.0

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