ASTROSAT CZTI

Data Quality Report

Orbit 17715

Creation date: 2024-06-27T17:39:57.023450
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/AS1T03_042T01_9000002630_17715cztM0_level2.evt modeM0/AS1T03_042T01_9000002630_17715cztM0_level2_quad_clean.evt
Size (bytes)696,412,80098,614,080
Size664.2 MB 94.0 MB
Events in quadrant A3,165,300687,970
Events in quadrant B3,164,650713,376
Events in quadrant C3,155,497679,907
Events in quadrant D11,184,292470,059

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133562
B0134822
C0134182
D0374642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6221200.321492%
B6222300.482160%
C6222580.932176%
D6222324752.185792%

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 7521 6222 0 0 0.00% 0.00%
B 7522 6223 2 2 0.03% 0.03%
C 7522 6223 0 0 0.00% 0.00%
D 7522 6222 3007 3007 39.98% 48.33%

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 15 174 147183 926.51 783 767 158.0
A 12 16 7530 42.8 783 767 158.0
A 0 226 6817 38.28 783 767 158.0
B 0 189 33812 224.14 791 775 147.4
B 12 111 17424 112.95 791 775 147.4
B 11 111 14903 95.85 791 775 147.4
C 14 238 120801 682.81 760 767 175.8
C 5 218 37313 207.89 760 767 175.8
C 3 233 31431 174.43 760 767 175.8
D 7 238 8896761 67701.48 541 526 131.4
D 13 232 136322 1033.42 541 526 131.4
D 1 52 35250 264.25 541 526 131.4

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