ASTROSAT CZTI

Data Quality Report

Orbit 47129

Creation date: 2024-06-27T23:32:03.351568
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/AS1C09_003T01_9000006298_47129cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47129cztM0_level2_quad_clean.evt
Size (bytes)457,174,080106,603,200
Size436.0 MB 101.7 MB
Events in quadrant A6,593,154707,413
Events in quadrant B3,446,551731,238
Events in quadrant C2,811,848693,551
Events in quadrant D3,560,262636,495

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244291
B0145681
C0134471
D0154691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65842273.447752%
B65841322.004860%
C6584430.653098%
D65851732.627183%

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 7489 6585 0 0 0.00% 0.00%
B 7489 6585 24 24 0.32% 0.36%
C 7489 6585 3 3 0.04% 0.05%
D 7490 6586 101 101 1.35% 1.53%

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 3734453 24782.56 728 712 150.7
A 9 191 11093 68.9 728 712 150.7
A 13 254 9971 61.46 728 712 150.7
B 4 21 163100 1149.19 725 704 141.3
B 0 190 156225 1100.54 725 704 141.3
B 5 32 75539 529.57 725 704 141.3
C 14 254 51934 309.88 705 706 165.3
C 1 3 7162 39.05 705 706 165.3
C 13 61 4869 25.18 705 706 165.3
D 2 249 275258 1558.02 708 684 176.2
D 1 47 159628 901.9 708 684 176.2
D 8 48 76474 430.06 708 684 176.2

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