ASTROSAT CZTI

Data Quality Report

Orbit 04562

Creation date: 2024-06-27T14:43:49.398873
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/AS1G05_233T10_9000000570_04562cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04562cztM0_level2_quad_clean.evt
Size (bytes)482,780,16084,896,640
Size460.4 MB 81.0 MB
Events in quadrant A3,021,813540,527
Events in quadrant B3,450,623533,951
Events in quadrant C2,941,596533,329
Events in quadrant D4,755,180499,412

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137233
B0147852
C0136922
D0187882

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66441542.317881%
B66442263.401565%
C66441131.700783%
D66443895.854907%

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 7234 6646 5 5 0.07% 0.08%
B 7234 6646 58 58 0.80% 0.87%
C 7234 6646 1 1 0.01% 0.02%
D 7234 6645 311 311 4.30% 4.68%

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 10 253 57386 363.2 759 742 156.0
A 0 50 13903 84.39 759 742 156.0
A 8 15 12355 74.46 759 742 156.0
B 10 16 226786 1547.89 760 739 146.0
B 14 167 140961 960.19 760 739 146.0
B 5 70 78861 534.95 760 739 146.0
C 9 247 41656 239.42 734 735 170.9
C 14 48 30852 176.21 734 735 170.9
C 13 61 6245 32.24 734 735 170.9
D 2 63 957181 5530.37 714 691 173.0
D 13 235 309248 1784.06 714 691 173.0
D 9 35 260485 1502.11 714 691 173.0

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