ASTROSAT CZTI

Data Quality Report

Orbit 44954

Creation date: 2024-06-27T23:08:21.894765
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_017T02_9000006032_44954cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44954cztM0_level2_quad_clean.evt
Size (bytes)634,576,320112,106,880
Size605.2 MB 106.9 MB
Events in quadrant A5,836,330773,144
Events in quadrant B4,235,009785,939
Events in quadrant C3,467,012774,876
Events in quadrant D9,433,535593,299

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218432
B0169471
C0146921
D0326991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66942463.674933%
B66943174.735584%
C66941181.762773%
D6695141821.179985%

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 7764 6695 11 11 0.14% 0.16%
B 7764 6695 102 102 1.31% 1.52%
C 7764 6695 18 18 0.23% 0.27%
D 7765 6696 1166 1166 15.02% 17.41%

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 2609944 15415.98 815 799 169.2
A 13 248 28605 164.29 815 799 169.2
A 0 243 25892 148.26 815 799 169.2
B 0 183 269705 1691.82 806 782 159.0
B 4 171 131828 824.42 806 782 159.0
B 5 255 116082 725.36 806 782 159.0
C 12 250 158133 828.69 810 817 189.8
C 1 3 64897 337.55 810 817 189.8
C 12 2 48210 249.65 810 817 189.8
D 12 33 3534710 18134.24 761 736 194.9
D 8 48 1221934 6266.45 761 736 194.9
D 5 235 336779 1724.37 761 736 194.9

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