ASTROSAT CZTI

Data Quality Report

Orbit 48232

Creation date: 2024-08-29T03:09:47.272301
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/AS1A13_029T01_9000006422_48232cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48232cztM0_level2_quad_clean.evt
Size (bytes)545,705,280114,215,040
Size520.4 MB 108.9 MB
Events in quadrant A7,735,058756,140
Events in quadrant B3,927,221787,080
Events in quadrant C3,526,759743,353
Events in quadrant D4,465,552680,653

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278772
B0164032
C0156582
D0182792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70395187.359000%
B70391792.542975%
C70391602.273050%
D70392563.636880%

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 7639 7039 49 49 0.64% 0.70%
B 7639 7039 14 14 0.18% 0.20%
C 7639 7040 84 84 1.10% 1.19%
D 7639 7040 174 174 2.28% 2.47%

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 4516876 27071.22 797 780 166.8
A 13 248 46943 276.72 797 780 166.8
A 0 31 40956 240.83 797 780 166.8
B 4 21 338717 2096.9 811 786 161.2
B 0 200 274364 1697.59 811 786 161.2
B 0 197 28020 168.99 811 786 161.2
C 12 2 440310 2353.61 790 794 186.7
C 13 61 5234 23.78 790 794 186.7
C 14 254 3963 16.97 790 794 186.7
D 2 165 704031 3492.43 793 766 201.4
D 7 38 353708 1752.72 793 766 201.4
D 12 233 123423 609.12 793 766 201.4

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