ASTROSAT CZTI

Data Quality Report

Orbit 38964

Creation date: 2024-06-27T21:58:42.996021
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/AS1T05_064T01_9000005416_38964cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38964cztM0_level2_quad_clean.evt
Size (bytes)365,500,80091,592,640
Size348.6 MB 87.3 MB
Events in quadrant A2,830,334622,835
Events in quadrant B2,759,164627,398
Events in quadrant C3,954,147586,578
Events in quadrant D3,560,296553,977

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118092
B0118561
C0153321
D0141451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5471180.329007%
B5471771.407421%
C54712073.783586%
D54711212.211661%

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 7144 5472 4 4 0.06% 0.07%
B 7144 5472 65 65 0.91% 1.19%
C 7144 5472 211 211 2.95% 3.86%
D 7144 5472 124 124 1.74% 2.27%

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 436568 3510.92 612 599 124.2
A 9 143 14023 108.11 612 599 124.2
A 13 6 9599 72.48 612 599 124.2
B 5 172 243939 2105.34 602 586 115.6
B 15 85 92721 797.1 602 586 115.6
B 0 230 48036 410.51 602 586 115.6
C 14 254 1406110 10266.25 588 591 136.9
C 15 214 225872 1645.5 588 591 136.9
C 2 16 11961 83.05 588 591 136.9
D 12 227 461813 3174.03 594 576 145.3
D 2 249 220318 1512.16 594 576 145.3
D 12 233 152981 1048.78 594 576 145.3

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