ASTROSAT CZTI

Data Quality Report

Orbit 15582

Creation date: 2024-06-27T17:10:30.453414
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/AS1A04_198T01_9000002308_15582cztM0_level2.evt modeM0/AS1A04_198T01_9000002308_15582cztM0_level2_quad_clean.evt
Size (bytes)273,536,64062,421,120
Size260.9 MB 59.5 MB
Events in quadrant A1,837,623402,488
Events in quadrant B1,962,413406,894
Events in quadrant C1,912,589393,304
Events in quadrant D2,280,884388,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085410
B087630
C085670
D098310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A425330.070538%
B4253150.352692%
C4253180.423231%
D42531082.539384%

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 4254 4254 0 0 0.00% 0.00%
B 4254 4254 7 7 0.16% 0.16%
C 4254 4254 0 0 0.00% 0.00%
D 4254 4254 115 115 2.70% 2.70%

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 9 143 5711 53.46 474 463 98.2
A 7 16 5522 51.53 474 463 98.2
A 0 226 4195 38.01 474 463 98.2
B 0 228 27667 291.48 478 464 93.3
B 0 189 25121 264.2 478 464 93.3
B 12 111 10641 109.05 478 464 93.3
C 14 238 70827 646.48 461 464 108.8
C 3 233 26668 240.76 461 464 108.8
C 0 207 17590 157.35 461 464 108.8
D 1 52 478544 4176.19 460 445 114.5
D 5 51 40947 353.78 460 445 114.5
D 2 234 20543 175.55 460 445 114.5

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