ASTROSAT CZTI

Data Quality Report

Orbit 06703

Creation date: 2024-06-27T15:10:35.776307
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/AS1G06_135T02_9000000918_06703cztM0_level2.evt modeM0/AS1G06_135T02_9000000918_06703cztM0_level2_quad_clean.evt
Size (bytes)360,731,52055,676,160
Size344.0 MB 53.1 MB
Events in quadrant A2,569,354337,440
Events in quadrant B2,309,810342,312
Events in quadrant C2,123,194337,373
Events in quadrant D3,586,442322,699

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113242
B0104111
C0100651
D0142161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4923621.259395%
B4923270.548446%
C492390.182815%
D492350410.237660%

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 6013 4924 35 35 0.58% 0.71%
B 6013 4924 4 4 0.07% 0.08%
C 6013 4924 2 2 0.03% 0.04%
D 6013 4924 332 332 5.52% 6.74%

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 14 207 294408 2583.08 556 543 113.8
A 15 234 44582 387.1 556 543 113.8
A 8 15 44519 386.55 556 543 113.8
B 3 220 34462 313.94 563 550 108.0
B 0 214 26452 239.78 563 550 108.0
B 0 228 22573 203.87 563 550 108.0
C 12 4 12869 97.85 540 542 126.0
C 13 61 4209 29.11 540 542 126.0
C 9 54 1999 11.57 540 542 126.0
D 2 33 1091492 8597.02 511 496 126.9
D 8 195 198207 1557.96 511 496 126.9
D 2 152 120004 941.72 511 496 126.9

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