ASTROSAT CZTI

Data Quality Report

Orbit 11041

Creation date: 2024-06-27T16:07:21.139519
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/AS1A04_113T02_9000001606_11041cztM0_level2.evt modeM0/AS1A04_113T02_9000001606_11041cztM0_level2_quad_clean.evt
Size (bytes)731,548,80082,362,240
Size697.7 MB 78.5 MB
Events in quadrant A10,041,035452,765
Events in quadrant B3,969,150539,068
Events in quadrant C2,934,052552,845
Events in quadrant D4,785,315509,064

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0342604
B0158892
C0128812
D0183962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6299245939.037943%
B62992804.445150%
C629960.095253%
D62992774.397523%

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 7520 6300 2121 2121 28.20% 33.67%
B 7520 6301 170 170 2.26% 2.70%
C 7520 6301 0 0 0.00% 0.00%
D 7520 6301 277 277 3.68% 4.40%

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 8 5 4632156 36365.96 627 614 127.4
A 14 238 2635159 20685.93 627 614 127.4
A 15 174 325509 2551.01 627 614 127.4
B 4 239 970868 6797.13 753 735 142.7
B 15 255 24827 168.8 753 735 142.7
B 0 187 18839 126.84 753 735 142.7
C 9 54 8158 42.88 749 753 172.7
C 14 234 6383 32.6 749 753 172.7
C 13 61 5466 27.29 749 753 172.7
D 14 34 786943 4541.3 726 706 173.1
D 1 52 661289 3815.53 726 706 173.1
D 11 129 183861 1057.9 726 706 173.1

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