ASTROSAT CZTI

Data Quality Report

Orbit 12407

Creation date: 2024-06-27T16:26:50.039728
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/AS1G08_083T02_9000001840_12407cztM0_level2.evt modeM0/AS1G08_083T02_9000001840_12407cztM0_level2_quad_clean.evt
Size (bytes)561,853,44075,173,760
Size535.8 MB 71.7 MB
Events in quadrant A5,354,872444,719
Events in quadrant B4,370,558465,988
Events in quadrant C3,008,784465,197
Events in quadrant D3,835,859441,710

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202822
B0171901
C0134881
D0157061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A656871010.809988%
B65685468.313033%
C65681452.207674%
D65682634.004263%

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 7164 6569 419 419 5.85% 6.38%
B 7164 6569 245 245 3.42% 3.73%
C 7164 6569 1 1 0.01% 0.02%
D 7164 6569 99 99 1.38% 1.51%

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 1694899 10702.45 771 752 158.3
A 13 251 273304 1721.8 771 752 158.3
A 1 162 108577 681.16 771 752 158.3
B 4 239 1207438 8083.0 774 753 149.3
B 3 64 34693 227.35 774 753 149.3
B 3 209 25652 166.79 774 753 149.3
C 13 61 5814 28.19 769 771 178.9
C 5 252 4770 22.35 769 771 178.9
C 14 234 4045 18.3 769 771 178.9
D 1 52 767792 4154.49 765 740 184.6
D 10 253 36508 193.73 765 740 184.6
D 13 104 35439 187.94 765 740 184.6

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