ASTROSAT CZTI

Data Quality Report

Orbit 03149

Creation date: 2024-06-27T14:25:15.400335
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_167T02_9000000432_03149cztM0_level2.evt modeM0/AS1G05_167T02_9000000432_03149cztM0_level2_quad_clean.evt
Size (bytes)1,085,198,400172,584,000
Size1.0 GB 164.6 MB
Events in quadrant A6,599,6981,082,885
Events in quadrant B7,236,0471,078,452
Events in quadrant C9,101,6591,059,655
Events in quadrant D8,960,5761,017,688

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295114
B0310553
C0365773
D0365483

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02920
B02920
C02920
D02920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143121160.810509%
B143122181.523197%
C143125633.933762%
D143125113.570430%

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 16082 14314 7 7 0.04% 0.05%
B 16082 14315 56 56 0.35% 0.39%
C 16082 14314 366 366 2.28% 2.56%
D 16082 14315 354 354 2.20% 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 14 249 81459 233.31 1662 1624 342.2
A 12 247 34236 95.3 1662 1624 342.2
A 13 164 30667 84.87 1662 1624 342.2
B 4 81 361249 1104.96 1682 1646 325.4
B 5 70 130849 397.0 1682 1646 325.4
B 3 0 78117 234.97 1682 1646 325.4
C 14 223 1969518 5304.97 1590 1601 371.0
C 1 192 605394 1627.66 1590 1601 371.0
C 6 80 100219 265.85 1590 1601 371.0
D 12 233 1292195 3365.11 1584 1532 383.5
D 2 136 417258 1083.91 1584 1532 383.5
D 5 233 364233 945.66 1584 1532 383.5

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