ASTROSAT CZTI

Data Quality Report

Orbit 10719

Creation date: 2024-06-27T16:03:16.449257
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/AS1A03_084T01_9000001544_10719cztM0_level2.evt modeM0/AS1A03_084T01_9000001544_10719cztM0_level2_quad_clean.evt
Size (bytes)206,236,80027,550,080
Size196.7 MB 26.3 MB
Events in quadrant A1,360,317162,551
Events in quadrant B1,856,001163,185
Events in quadrant C1,318,151160,613
Events in quadrant D1,525,088153,101

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056874
B072251
C056081
D061771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2713451.658680%
B27141646.042741%
C2714281.031688%
D2714441.621223%

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 3499 2715 2 2 0.06% 0.07%
B 3500 2716 58 58 1.66% 2.14%
C 3500 2716 0 0 0.00% 0.00%
D 3500 2716 7 7 0.20% 0.26%

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 15559 211.79 342 334 71.9
A 14 254 14847 201.89 342 334 71.9
A 1 162 4795 62.06 342 334 71.9
B 4 239 348753 5196.39 340 333 67.1
B 4 81 106951 1590.12 340 333 67.1
B 0 219 35706 527.56 340 333 67.1
C 14 234 9001 110.35 333 334 78.5
C 15 48 6852 82.99 333 334 78.5
C 13 61 2521 27.84 333 334 78.5
D 2 16 106463 1303.12 331 321 81.5
D 2 14 44137 537.94 331 321 81.5
D 1 52 35510 432.02 331 321 81.5

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