ASTROSAT CZTI

Data Quality Report

Orbit 44403

Creation date: 2024-06-27T23:03:10.876374
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/AS1A13_008T08_9000005998_44403cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44403cztM0_level2_quad_clean.evt
Size (bytes)545,376,960106,643,520
Size520.1 MB 101.7 MB
Events in quadrant A4,885,217738,608
Events in quadrant B3,406,903754,372
Events in quadrant C3,382,665720,808
Events in quadrant D8,001,430555,003

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199901
B0145181
C0147551
D0283131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65991652.500379%
B66001281.939394%
C6600691.045455%
D6600137920.893939%

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 7604 6600 6 6 0.08% 0.09%
B 7605 6600 20 20 0.26% 0.30%
C 7605 6600 33 33 0.43% 0.50%
D 7605 6600 1363 1363 17.92% 20.65%

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 1832175 11425.29 766 750 160.3
A 0 243 39593 242.32 766 750 160.3
A 13 248 33933 207.01 766 750 160.3
B 5 255 75981 496.2 763 742 151.6
B 0 155 66844 435.94 763 742 151.6
B 5 172 57639 375.23 763 742 151.6
C 14 254 357576 2019.51 738 741 176.7
C 3 233 86172 483.5 738 741 176.7
C 12 250 39281 218.12 738 741 176.7
D 6 239 1780656 10240.63 682 661 173.8
D 1 52 1143797 6576.67 682 661 173.8
D 4 221 690334 3967.81 682 661 173.8

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