ASTROSAT CZTI

Data Quality Report

Orbit 08223

Creation date: 2024-06-27T15:29:38.395848
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/AS1C02_041T01_9000001136_08223cztM0_level2.evt modeM0/AS1C02_041T01_9000001136_08223cztM0_level2_quad_clean.evt
Size (bytes)435,363,84092,007,360
Size415.2 MB 87.7 MB
Events in quadrant A3,051,764595,598
Events in quadrant B3,325,698596,411
Events in quadrant C3,081,470582,749
Events in quadrant D3,291,755566,153

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133282
B0139981
C0135631
D0142811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63891181.846924%
B63891732.707779%
C6389701.095633%
D63891302.034747%

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 7324 6389 5 5 0.07% 0.08%
B 7324 6389 43 43 0.59% 0.67%
C 7324 6390 0 0 0.00% 0.00%
D 7324 6390 47 47 0.64% 0.74%

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 5 16 48267 294.16 780 761 161.5
A 0 226 7400 41.11 780 761 161.5
A 12 194 7108 39.3 780 761 161.5
B 0 213 105084 702.83 772 755 148.4
B 11 51 79425 529.97 772 755 148.4
B 0 214 54367 361.17 772 755 148.4
C 9 68 166550 954.5 742 747 173.7
C 1 16 21415 118.98 742 747 173.7
C 13 61 5671 28.35 742 747 173.7
D 13 105 190113 1020.52 751 729 185.6
D 1 52 175192 940.11 751 729 185.6
D 1 7 39063 206.56 751 729 185.6

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