ASTROSAT CZTI

Data Quality Report

Orbit 46516

Creation date: 2024-06-27T23:24:06.717670
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_068T07_9000006222_46516cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46516cztM0_level2_quad_clean.evt
Size (bytes)472,032,000108,449,280
Size450.2 MB 103.4 MB
Events in quadrant A6,316,727712,807
Events in quadrant B3,303,459754,120
Events in quadrant C3,371,103717,487
Events in quadrant D3,976,526645,788

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231522
B0140972
C0145552
D0163522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65122233.424447%
B65111051.612656%
C65111201.843035%
D65112133.271387%

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 7627 6512 64 64 0.84% 0.98%
B 7626 6511 20 20 0.26% 0.31%
C 7626 6511 74 74 0.97% 1.14%
D 7626 6511 180 180 2.36% 2.76%

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 3364002 21834.84 740 725 154.0
A 9 191 31099 197.19 740 725 154.0
A 0 243 19883 124.38 740 725 154.0
B 5 255 70824 471.09 752 731 148.8
B 0 190 61564 408.85 752 731 148.8
B 5 172 41911 276.77 752 731 148.8
C 14 254 265558 1525.31 734 740 173.6
C 12 2 195337 1120.85 734 740 173.6
C 3 233 37327 210.74 734 740 173.6
D 13 249 379094 2088.81 722 700 181.2
D 2 37 194223 1068.28 722 700 181.2
D 2 249 162573 893.57 722 700 181.2

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