ASTROSAT CZTI

Data Quality Report

Orbit 21466

Creation date: 2024-06-27T18:28:11.974026
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/AS1A06_005T09_9000003168_21466cztM0_level2.evt modeM0/AS1A06_005T09_9000003168_21466cztM0_level2_quad_clean.evt
Size (bytes)409,944,96070,894,080
Size391.0 MB 67.6 MB
Events in quadrant A2,875,668448,313
Events in quadrant B2,934,577459,296
Events in quadrant C2,855,891442,394
Events in quadrant D3,389,896427,121

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012616
B012620
C012618
D012622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193
B0203
C0203
D0205

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140072422
B0142502441
C0141602573
D0163423012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5300561.056604%
B5310731.374765%
C52701102.087287%
D5223871.665709%

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 7598 5621 0 0 0.00% 0.00%
B 7617 5611 0 0 0.00% 0.00%
C 7617 5588 0 0 0.00% 0.00%
D 7616 5556 24 24 0.32% 0.43%

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 11 47 40960 274.77 736 723 146.4
A 13 254 7372 45.41 736 723 146.4
A 0 226 6407 38.82 736 723 146.4
B 0 230 18867 131.29 736 721 138.2
B 0 190 17646 122.45 736 721 138.2
B 3 64 17211 119.31 736 721 138.2
C 14 238 113259 702.49 703 713 160.2
C 13 61 4848 25.81 703 713 160.2
C 10 91 3876 19.74 703 713 160.2
D 13 174 356303 2094.25 707 689 169.8
D 1 52 120917 708.04 707 689 169.8
D 1 20 94392 551.83 707 689 169.8

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