ASTROSAT CZTI

Data Quality Report

Orbit 30106

Creation date: 2024-06-27T20:10:58.239607
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/AS1C05_019T01_9000004332_30106cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30106cztM0_level2_quad_clean.evt
Size (bytes)517,078,080138,277,440
Size493.1 MB 131.9 MB
Events in quadrant A3,219,895949,363
Events in quadrant B5,174,435962,266
Events in quadrant C3,390,097915,168
Events in quadrant D3,426,585900,003

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138341
B0202491
C0142421
D0147521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6621410.619242%
B6621881.329104%
C66211752.643105%
D6621420.634345%

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 7821 6622 2 2 0.03% 0.03%
B 7821 6622 6 6 0.08% 0.09%
C 7821 6622 1 1 0.01% 0.02%
D 7821 6622 21 21 0.27% 0.32%

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 14 238 29765 178.49 820 805 162.3
A 8 192 23204 138.05 820 805 162.3
A 13 254 11752 67.47 820 805 162.3
B 6 159 1877831 12290.84 821 803 152.7
B 0 190 36190 231.72 821 803 152.7
B 12 111 18313 114.66 821 803 152.7
C 14 238 192528 1057.67 785 791 181.3
C 14 254 86046 470.29 785 791 181.3
C 3 233 26440 141.49 785 791 181.3
D 8 195 187011 1008.03 780 761 184.8
D 2 250 101342 544.37 780 761 184.8
D 12 227 96550 518.43 780 761 184.8

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