ASTROSAT CZTI

Data Quality Report

Orbit 14340

Creation date: 2024-06-27T16:53:45.575611
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_078T01_9000002110_14340cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14340cztM0_level2_quad_clean.evt
Size (bytes)512,314,56091,759,680
Size488.6 MB 87.5 MB
Events in quadrant A3,317,787594,058
Events in quadrant B3,869,148591,366
Events in quadrant C3,300,111591,511
Events in quadrant D4,597,491558,317

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138133
B0155782
C0135822
D0180522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6358480.754954%
B63582433.821957%
C6358350.550488%
D63582714.262347%

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 7494 6360 0 0 0.00% 0.00%
B 7494 6359 129 129 1.72% 2.03%
C 7494 6360 0 0 0.00% 0.00%
D 7494 6360 177 177 2.36% 2.78%

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 12 189 225986 1416.18 790 776 159.0
A 8 15 40854 252.02 790 776 159.0
A 11 29 7039 39.38 790 776 159.0
B 0 229 432129 2917.47 781 762 147.9
B 10 16 271224 1829.22 781 762 147.9
B 0 189 35960 238.05 781 762 147.9
C 3 233 298252 1664.81 770 775 178.7
C 13 61 5506 26.48 770 775 178.7
C 3 202 1809 5.79 770 775 178.7
D 1 52 551246 3073.34 754 737 179.1
D 5 222 411409 2292.67 754 737 179.1
D 12 110 390797 2177.6 754 737 179.1

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