ASTROSAT CZTI

Data Quality Report

Orbit 32322

Creation date: 2024-06-27T20:38:51.140341
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/AS1A10_005T01_9000004700_32322cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32322cztM0_level2_quad_clean.evt
Size (bytes)795,384,00096,289,920
Size758.5 MB 91.8 MB
Events in quadrant A3,218,701673,527
Events in quadrant B6,150,172647,078
Events in quadrant C7,804,793579,042
Events in quadrant D6,493,452578,691

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134633
B0226582
C0275162
D0233922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6257170.271696%
B62574356.952214%
C6257169227.041713%
D62574697.495605%

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 7557 6258 0 0 0.00% 0.00%
B 7557 6258 218 218 2.88% 3.48%
C 7557 6258 1006 1006 13.31% 16.08%
D 7557 6258 382 382 5.05% 6.10%

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 0 6 29867 178.46 821 806 162.8
A 13 254 12640 72.67 821 806 162.8
A 13 6 11486 65.58 821 806 162.8
B 6 159 2059655 13782.05 805 787 149.4
B 5 172 767001 5129.03 805 787 149.4
B 0 190 63732 421.35 805 787 149.4
C 0 10 4042008 23811.28 732 738 169.7
C 3 233 649945 3825.14 732 738 169.7
C 14 238 117833 689.92 732 738 169.7
D 8 195 2420042 13274.35 772 755 182.3
D 13 249 368448 2017.49 772 755 182.3
D 12 6 344155 1884.2 772 755 182.3

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