ASTROSAT CZTI

Data Quality Report

Orbit 17689

Creation date: 2024-06-27T17:39:39.854113
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/AS1A05_186T02_9000002624_17689cztM0_level2.evt modeM0/AS1A05_186T02_9000002624_17689cztM0_level2_quad_clean.evt
Size (bytes)502,263,36092,485,440
Size479.0 MB 88.2 MB
Events in quadrant A3,202,701601,949
Events in quadrant B3,487,205605,688
Events in quadrant C3,326,328579,438
Events in quadrant D4,759,774566,298

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133803
B0143092
C0134642
D0186462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6414821.278453%
B64141362.120362%
C64141071.668226%
D64141592.478952%

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 7574 6415 0 0 0.00% 0.00%
B 7574 6415 38 38 0.50% 0.59%
C 7574 6415 0 0 0.00% 0.00%
D 7574 6415 82 82 1.08% 1.28%

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 14 237 69487 417.54 816 802 164.5
A 0 226 7098 38.27 816 802 164.5
A 12 194 5914 31.08 816 802 164.5
B 10 245 237506 1549.06 806 786 152.8
B 0 189 53348 343.96 806 786 152.8
B 0 230 26236 166.54 806 786 152.8
C 3 233 188703 1048.79 771 778 179.2
C 14 238 121561 674.07 771 778 179.2
C 5 218 10989 56.99 771 778 179.2
D 1 52 1609470 8488.7 783 761 189.5
D 7 238 117649 616.78 783 761 189.5
D 2 234 21719 110.59 783 761 189.5

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