ASTROSAT CZTI

Data Quality Report

Orbit 36204

Creation date: 2022-06-09T07:03:23.944030
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/AS1T05_009T04_9000005174_36204cztM0_level2.evt modeM0/AS1T05_009T04_9000005174_36204cztM0_level2_quad_clean.evt
Size (bytes)222,387,84056,957,760
Size212.1 MB 54.3 MB
Events in quadrant A1,389,029377,415
Events in quadrant B1,459,858389,362
Events in quadrant C1,702,165391,342
Events in quadrant D1,986,038360,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060311
B062601
C068221
D079941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A288670.242550%
B2886100.346500%
C2886301.039501%
D28861314.539155%

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 2886 2886 3 3 0.10% 0.10%
B 2886 2886 5 5 0.17% 0.17%
C 2886 2886 30 30 1.04% 1.04%
D 2886 2886 141 141 4.89% 4.89%

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 10 83 88388 1357.72 320 314 64.9
A 8 144 30776 469.59 320 314 64.9
A 15 223 24038 365.72 320 314 64.9
B 0 190 78708 1254.82 325 316 62.5
B 5 172 68574 1092.6 325 316 62.5
B 5 255 12724 198.61 325 316 62.5
C 4 254 186848 2514.5 318 321 74.2
C 15 214 129817 1745.69 318 321 74.2
C 0 10 97619 1311.64 318 321 74.2
D 12 6 538229 7132.21 306 299 75.4
D 2 153 65329 862.21 306 299 75.4
D 13 249 58492 771.56 306 299 75.4

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