ASTROSAT CZTI

Data Quality Report

Orbit 03286

Creation date: 2024-06-27T14:27:08.803220
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_228T02_9000000446_03286cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03286cztM0_level2_quad_clean.evt
Size (bytes)481,556,16055,031,040
Size459.2 MB 52.5 MB
Events in quadrant A3,123,614304,241
Events in quadrant B4,447,975303,957
Events in quadrant C3,394,524305,573
Events in quadrant D3,172,888295,006

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135143
B0174462
C0143572
D0140082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6550340.519084%
B65501782.717557%
C6550871.328244%
D6550410.625954%

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 7825 6551 0 0 0.00% 0.00%
B 7825 6551 48 48 0.61% 0.73%
C 7825 6551 29 29 0.37% 0.44%
D 7825 6551 25 25 0.32% 0.38%

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 11129 63.22 803 787 163.6
A 14 249 11098 63.03 803 787 163.6
A 0 226 9246 51.71 803 787 163.6
B 15 204 878112 5605.98 813 796 156.5
B 2 249 357947 2282.17 813 796 156.5
B 15 54 23067 142.31 813 796 156.5
C 14 223 218010 1197.11 779 783 181.5
C 6 80 77103 420.59 779 783 181.5
C 12 175 34788 187.4 779 783 181.5
D 13 239 112404 594.56 774 751 187.8
D 13 223 66984 352.7 774 751 187.8
D 5 233 49279 258.42 774 751 187.8

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