ASTROSAT CZTI

Data Quality Report

Orbit 11465

Creation date: 2024-06-27T16:13:19.202505
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_032T01_9000001680_11465cztM0_level2.evt modeM0/AS1G08_032T01_9000001680_11465cztM0_level2_quad_clean.evt
Size (bytes)493,787,52089,645,760
Size470.9 MB 85.5 MB
Events in quadrant A3,112,042582,272
Events in quadrant B4,206,705568,277
Events in quadrant C3,046,486579,607
Events in quadrant D4,159,667542,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134373
B0167322
C0133482
D0165582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325681.075099%
B63252353.715415%
C6325500.790514%
D63252544.015810%

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 7446 6328 4 4 0.05% 0.06%
B 7446 6328 94 94 1.26% 1.49%
C 7446 6328 3 3 0.04% 0.05%
D 7446 6328 190 190 2.55% 3.00%

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 9 143 45302 285.71 771 755 155.9
A 13 251 23889 148.38 771 755 155.9
A 13 248 14425 87.68 771 755 155.9
B 4 239 488614 3416.81 759 740 142.8
B 3 64 273030 1906.98 759 740 142.8
B 15 204 219426 1531.56 759 740 142.8
C 3 9 77696 437.78 756 761 175.7
C 5 239 21325 117.02 756 761 175.7
C 13 61 5415 26.48 756 761 175.7
D 13 104 627875 3460.17 746 726 181.2
D 1 52 503467 2773.78 746 726 181.2
D 2 120 61617 335.95 746 726 181.2

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