ASTROSAT CZTI

Data Quality Report

Orbit 38710

Creation date: 2024-06-27T21:55:25.184761
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/AS1A12_054T01_9000005392_38710cztM0_level2.fits modeM0/AS1A12_054T01_9000005392_38710cztM0_level2_quad_clean.evt
Size (bytes)512,815,68076,423,680
Size489.1 MB 72.9 MB
Events in quadrant A2,770,266608,448
Events in quadrant B2,399,393623,899
Events in quadrant C2,496,802584,736
Events in quadrant D10,917,422138,848

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112123
B0104092
C0104832
D0358722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5111140.273919%
B5111110.215222%
C511150.097828%
D5112402578.736307%

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 7174 5112 10 10 0.14% 0.20%
B 7174 5112 2 2 0.03% 0.04%
C 7174 5112 2 2 0.03% 0.04%
D 7175 5113 3508 3508 48.89% 68.61%

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 392178 3264.8 591 580 119.9
A 0 8 78092 646.23 591 580 119.9
A 13 254 7850 60.61 591 580 119.9
B 4 171 33477 294.2 584 569 111.9
B 0 230 24237 211.59 584 569 111.9
B 4 81 14121 121.15 584 569 111.9
C 15 214 214791 1617.89 570 575 132.4
C 15 208 17333 126.57 570 575 132.4
C 0 10 13997 101.37 570 575 132.4
D 2 16 8920940 91611.71 399 387 97.4
D 12 235 252570 2589.85 399 387 97.4
D 5 222 50406 513.68 399 387 97.4

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