ASTROSAT CZTI

Data Quality Report

Orbit 43290

Creation date: 2024-06-27T22:50:13.945319
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/AS1A12_089T01_9000005864_43290cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43290cztM0_level2_quad_clean.evt
Size (bytes)393,318,72091,946,880
Size375.1 MB 87.7 MB
Events in quadrant A4,755,526575,203
Events in quadrant B2,950,417636,582
Events in quadrant C2,749,682620,837
Events in quadrant D3,661,341554,216

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178412
B0126242
C0117673
D0147192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56845609.852217%
B56841111.952850%
C5683170.299138%
D56832374.170333%

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 7085 5685 478 478 6.75% 8.41%
B 7085 5685 89 89 1.26% 1.57%
C 7084 5684 17 17 0.24% 0.30%
D 7084 5684 215 215 3.04% 3.78%

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 15 237 1597270 13028.76 592 579 122.6
A 10 83 632281 5154.59 592 579 122.6
A 12 189 117202 951.63 592 579 122.6
B 5 172 257337 2097.27 622 605 122.4
B 0 186 125266 1018.37 622 605 122.4
B 5 255 71180 576.54 622 605 122.4
C 15 214 240988 1667.14 610 614 144.2
C 14 254 99277 684.29 610 614 144.2
C 15 159 15680 104.49 610 614 144.2
D 1 52 459883 3084.88 603 587 148.9
D 13 249 279377 1872.5 603 587 148.9
D 12 233 256749 1720.52 603 587 148.9

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