ASTROSAT CZTI

Data Quality Report

Orbit 44417

Creation date: 2024-06-27T23:03:21.695748
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/AS1A13_008T08_9000005998_44417cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44417cztM0_level2_quad_clean.evt
Size (bytes)484,560,000103,953,600
Size462.1 MB 99.1 MB
Events in quadrant A4,754,414715,564
Events in quadrant B3,283,865734,466
Events in quadrant C3,348,600699,430
Events in quadrant D6,066,183563,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192674
B0137391
C0142732
D0222341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62262003.212335%
B62271742.794283%
C62261552.489560%
D6227102116.396339%

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 7326 6227 15 15 0.20% 0.24%
B 7327 6228 22 22 0.30% 0.35%
C 7327 6228 65 65 0.89% 1.04%
D 7327 6228 840 840 11.46% 13.49%

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 1734526 11243.83 739 723 154.2
A 13 248 58743 376.26 739 723 154.2
A 0 243 56638 362.61 739 723 154.2
B 0 229 109934 754.86 733 712 144.7
B 5 32 85200 583.92 733 712 144.7
B 0 155 44766 304.47 733 712 144.7
C 12 16 328870 1968.01 708 714 166.7
C 14 254 196844 1176.23 708 714 166.7
C 3 233 50833 300.57 708 714 166.7
D 4 221 925968 5483.2 670 651 168.8
D 13 249 718168 4251.83 670 651 168.8
D 2 249 619255 3665.69 670 651 168.8

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