ASTROSAT CZTI

Data Quality Report

Orbit 47305

Creation date: 2024-06-27T14:41:14.413487
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_093T12_9000006314_47305cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47305cztM0_level2_quad_clean.evt
Size (bytes)697,170,240114,569,280
Size664.9 MB 109.3 MB
Events in quadrant A11,620,510642,211
Events in quadrant B3,985,432810,707
Events in quadrant C3,545,589824,886
Events in quadrant D6,044,072642,972

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0399863
B0174071
C0166121
D0240041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7879205326.056606%
B78804395.571066%
C78801531.941624%
D7880123915.723350%

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 7879 7879 1045 1045 13.26% 13.26%
B 7910 7881 16 16 0.20% 0.20%
C 7910 7881 20 20 0.25% 0.25%
D 7910 7881 804 804 10.16% 10.20%

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 3801938 22626.74 802 783 168.0
A 15 235 2988896 17787.03 802 783 168.0
A 14 248 992223 5901.64 802 783 168.0
B 0 200 353706 2070.28 866 838 170.4
B 0 198 86068 500.04 866 838 170.4
B 0 190 35151 201.31 866 838 170.4
C 12 2 79160 386.94 863 863 202.3
C 14 254 66361 323.69 863 863 202.3
C 3 233 20515 97.12 863 863 202.3
D 12 2 2876736 14707.97 781 752 195.5
D 7 38 48965 246.56 781 752 195.5
D 2 234 41598 208.89 781 752 195.5

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