ASTROSAT CZTI

Data Quality Report

Orbit 43117

Creation date: 2024-06-27T22:48:15.466704
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/AS1T05_154T01_9000005850_43117cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43117cztM0_level2_quad_clean.evt
Size (bytes)383,561,28096,649,920
Size365.8 MB 92.2 MB
Events in quadrant A4,391,623633,384
Events in quadrant B2,609,429654,369
Events in quadrant C2,813,265639,454
Events in quadrant D3,927,444589,199

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168922
B0120252
C0123192
D0159532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58653515.984655%
B586470.119372%
C5864270.460437%
D58642193.734652%

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 7178 5865 242 242 3.37% 4.13%
B 7177 5865 0 0 0.00% 0.00%
C 7177 5865 15 15 0.21% 0.26%
D 7177 5865 220 220 3.07% 3.75%

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 15 222 864753 6871.65 608 595 125.8
A 10 83 610620 4850.83 608 595 125.8
A 15 237 503706 4000.66 608 595 125.8
B 0 229 97966 811.49 616 598 120.0
B 0 189 51391 423.32 616 598 120.0
B 0 230 25109 204.28 616 598 120.0
C 15 214 244529 1703.43 611 615 143.2
C 3 233 158152 1100.2 611 615 143.2
C 0 239 13262 88.32 611 615 143.2
D 1 52 1195370 7970.41 608 590 149.9
D 5 32 145580 967.23 608 590 149.9
D 12 0 58623 387.14 608 590 149.9

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