ASTROSAT CZTI

Data Quality Report

Orbit 18310

Creation date: 2024-06-27T17:48:09.871040
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/AS1A06_006T01_9000002720_18310cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18310cztM0_level2_quad_clean.evt
Size (bytes)289,825,92050,708,160
Size276.4 MB 48.4 MB
Events in quadrant A1,859,584325,974
Events in quadrant B1,920,078330,329
Events in quadrant C1,902,655321,138
Events in quadrant D2,856,312309,935

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0722
B0722
C0713
D0722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0764597
B0784179
C0788289
D010924133

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3504501.426941%
B3516651.848692%
C3510842.393162%
D34992888.230923%

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 4902 3519 0 0 0.00% 0.00%
B 4902 3529 0 0 0.00% 0.00%
C 4901 3523 1 1 0.02% 0.03%
D 4901 3516 207 207 4.22% 5.89%

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 0 226 4491 40.74 483 474 98.6
A 12 194 3635 32.06 483 474 98.6
A 3 137 3170 27.34 483 474 98.6
B 12 111 9900 102.37 484 473 92.1
B 4 48 8203 83.94 484 473 92.1
B 11 111 8159 83.46 484 473 92.1
C 14 238 72661 668.42 464 468 108.0
C 3 233 10650 94.27 464 468 108.0
C 0 207 9147 80.36 464 468 108.0
D 1 52 649756 5917.64 449 437 109.7
D 7 238 277590 2525.86 449 437 109.7
D 13 168 167450 1522.09 449 437 109.7

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