ASTROSAT CZTI

Data Quality Report

Orbit 44603

Creation date: 2024-06-27T23:04:24.493949
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_009T03_9000006006_44603cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44603cztM0_level2_quad_clean.evt
Size (bytes)554,973,120108,371,520
Size529.3 MB 103.4 MB
Events in quadrant A5,023,354772,876
Events in quadrant B6,506,509647,080
Events in quadrant C3,500,973751,206
Events in quadrant D5,004,801653,840

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204942
B0236432
C0145782
D0193732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6543781.192114%
B6543141221.580315%
C6543460.703041%
D65434837.381935%

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 7803 6544 24 24 0.31% 0.37%
B 7803 6543 1278 1278 16.38% 19.53%
C 7803 6544 36 36 0.46% 0.55%
D 7803 6543 405 405 5.19% 6.19%

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 1940205 12234.11 763 748 158.5
A 13 248 84587 528.86 763 748 158.5
A 15 223 46088 286.01 763 748 158.5
B 14 167 3469603 25977.96 684 665 133.5
B 5 172 289240 2161.06 684 665 133.5
B 0 155 26883 196.34 684 665 133.5
C 12 2 214709 1221.18 749 754 175.2
C 1 90 136571 775.19 749 754 175.2
C 3 233 88423 500.38 749 754 175.2
D 1 52 1290861 7013.86 724 701 183.9
D 13 249 636976 3459.06 724 701 183.9
D 2 249 83043 447.65 724 701 183.9

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