ASTROSAT CZTI

Data Quality Report

Orbit 08483

Creation date: 2024-06-27T15:33:19.151139
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/AS1G07_007T01_9000001196_08483cztM0_level2.evt modeM0/AS1G07_007T01_9000001196_08483cztM0_level2_quad_clean.evt
Size (bytes)497,479,68068,875,200
Size474.4 MB 65.7 MB
Events in quadrant A4,642,579411,526
Events in quadrant B3,654,918418,930
Events in quadrant C3,092,816408,224
Events in quadrant D3,238,408397,095

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179163
B0146992
C0134042
D0138952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64455168.006206%
B64451882.916990%
C6445881.365400%
D64451081.675718%

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 7570 6445 310 310 4.10% 4.81%
B 7570 6445 38 38 0.50% 0.59%
C 7570 6446 0 0 0.00% 0.00%
D 7570 6445 17 17 0.22% 0.26%

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 5 16 1485284 9067.26 808 790 163.7
A 15 236 18680 109.27 808 790 163.7
A 13 251 17044 99.28 808 790 163.7
B 5 255 273198 1730.28 826 810 157.4
B 11 51 58335 365.41 826 810 157.4
B 0 214 50662 316.67 826 810 157.4
C 13 61 6209 29.51 792 799 183.3
C 8 222 2636 10.02 792 799 183.3
C 3 202 2018 6.65 792 799 183.3
D 2 152 65453 331.35 788 770 195.2
D 1 52 55890 282.36 788 770 195.2
D 7 71 40017 201.05 788 770 195.2

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