ASTROSAT CZTI

Data Quality Report

Orbit 08472

Creation date: 2024-06-27T15:33:08.557256
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/AS1A03_030T01_9000001194_08472cztM0_level2.evt modeM0/AS1A03_030T01_9000001194_08472cztM0_level2_quad_clean.evt
Size (bytes)220,440,96019,370,880
Size210.2 MB 18.5 MB
Events in quadrant A1,598,95390,573
Events in quadrant B1,649,68592,397
Events in quadrant C1,584,77690,076
Events in quadrant D1,624,39686,499

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068251
B069280
C067900
D070080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31792046.417112%
B31792176.826046%
C31791223.837685%
D31791253.932054%

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 3179 3179 0 0 0.00% 0.00%
B 3179 3179 9 9 0.28% 0.28%
C 3179 3179 0 0 0.00% 0.00%
D 3179 3179 4 4 0.13% 0.13%

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 14 8030 87.73 410 400 87.0
A 13 248 6636 71.71 410 400 87.0
A 0 226 3876 39.97 410 400 87.0
B 10 252 34582 416.05 412 400 82.2
B 5 255 10816 126.78 412 400 82.2
B 12 111 9637 112.43 412 400 82.2
C 8 128 8396 83.28 401 400 96.0
C 8 112 3811 35.53 401 400 96.0
C 8 144 3318 30.39 401 400 96.0
D 1 52 47558 484.23 398 384 97.4
D 2 136 30720 311.39 398 384 97.4
D 7 71 20267 204.09 398 384 97.4

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