ASTROSAT CZTI

Data Quality Report

Orbit 09510

Creation date: 2024-06-27T15:47:03.477386
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/AS1G05_230T06_9000001350_09510cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09510cztM0_level2_quad_clean.evt
Size (bytes)1,509,402,240299,485,440
Size1.4 GB 285.6 MB
Events in quadrant A12,540,4401,924,076
Events in quadrant B10,208,2161,986,321
Events in quadrant C9,576,8061,946,053
Events in quadrant D12,066,0311,867,203

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0565415551
B0457483382
C0444123143
D0522134073

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043434
B043432
C043436
D043428

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0503

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193243962.049265%
B196093411.738997%
C196712351.194652%
D195594082.085996%

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 26326 20109 3 3 0.01% 0.01%
B 26326 20414 3 3 0.01% 0.01%
C 26326 20431 0 0 0.00% 0.00%
D 26326 20389 128 128 0.49% 0.63%

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 1607408 3197.91 2511 2463 501.9
A 1 162 598710 1188.04 2511 2463 501.9
A 1 178 249830 492.89 2511 2463 501.9
B 0 214 137179 285.74 2534 2480 471.4
B 0 219 55978 113.49 2534 2480 471.4
B 0 187 51254 103.47 2534 2480 471.4
C 13 61 18653 29.11 2450 2470 556.0
C 8 222 10222 13.94 2450 2470 556.0
C 12 4 7328 8.74 2450 2470 556.0
D 1 52 1165283 1920.41 2432 2372 605.6
D 8 195 601289 989.04 2432 2372 605.6
D 12 233 532173 874.9 2432 2372 605.6

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