ASTROSAT CZTI

Data Quality Report

Orbit 03243

Creation date: 2024-06-27T14:26:39.249009
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/AS1G05_104T01_9000000440_03243cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03243cztM0_level2_quad_clean.evt
Size (bytes)461,119,68073,209,600
Size439.8 MB 69.8 MB
Events in quadrant A2,948,190444,769
Events in quadrant B3,882,619449,758
Events in quadrant C3,509,945444,917
Events in quadrant D3,186,327427,416

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131603
B0156422
C0145812
D0140182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6444280.434513%
B6444721.117318%
C6444480.744879%
D6444400.620732%

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 7699 6445 2 2 0.03% 0.03%
B 7699 6445 25 25 0.32% 0.39%
C 7699 6445 15 15 0.19% 0.23%
D 7699 6445 23 23 0.30% 0.36%

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 0 118 18173 113.3 754 738 153.9
A 0 149 12657 77.45 754 738 153.9
A 0 226 10544 63.72 754 738 153.9
B 15 204 775252 5379.05 770 752 144.0
B 2 249 82753 569.51 770 752 144.0
B 0 229 23410 157.36 770 752 144.0
C 14 48 402847 2342.92 745 748 171.6
C 14 223 75589 436.08 745 748 171.6
C 6 80 51960 298.4 745 748 171.6
D 13 223 227360 1298.14 731 710 174.6
D 13 114 102965 585.67 731 710 174.6
D 2 248 24741 137.64 731 710 174.6

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