ASTROSAT CZTI

Data Quality Report

Orbit 31019

Creation date: 2024-06-27T20:22:21.658481
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/AS1A10_071T54_9000004482_31019cztM0_level2.evt modeM0/AS1A10_071T54_9000004482_31019cztM0_level2_quad_clean.evt
Size (bytes)384,261,12050,783,040
Size366.5 MB 48.4 MB
Events in quadrant A2,191,708326,191
Events in quadrant B3,548,548329,114
Events in quadrant C2,694,414291,919
Events in quadrant D2,917,521294,333

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090761
B0132021
C0105231
D0113811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4198400.952835%
B41981132.691758%
C41982215.264412%
D4198852.024774%

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 5538 4198 0 0 0.00% 0.00%
B 5538 4198 9 9 0.16% 0.21%
C 5538 4198 116 116 2.09% 2.76%
D 5538 4198 50 50 0.90% 1.19%

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 13 254 7901 63.59 568 558 115.5
A 3 137 5450 42.37 568 558 115.5
A 0 226 4762 36.41 568 558 115.5
B 6 159 1244120 11540.74 564 551 107.8
B 0 183 30104 274.26 564 551 107.8
B 4 171 17661 158.79 564 551 107.8
C 0 10 526787 4257.34 526 531 123.6
C 14 238 85908 690.69 526 531 123.6
C 4 175 16540 129.51 526 531 123.6
D 8 195 399893 3106.4 540 526 128.6
D 13 174 337415 2620.42 540 526 128.6
D 13 249 73477 567.43 540 526 128.6

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