ASTROSAT CZTI

Data Quality Report

Orbit 01185

Creation date: 2024-06-27T14:08:49.025427
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/AS1G04_007T02_9000000220_01185cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01185cztM0_level2_quad_clean.evt
Size (bytes)1,128,608,64070,188,480
Size1.1 GB 66.9 MB
Events in quadrant A6,055,655526,452
Events in quadrant B6,488,167529,601
Events in quadrant C5,838,333505,580
Events in quadrant D15,464,448208,494

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215752
B0228201
C0209231
D0503411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A503450.099325%
B5034210.417163%
C5034110.218514%
D50345034100.000000%

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 6259 5035 126 126 2.01% 2.50%
B 6259 5035 300 300 4.79% 5.96%
C 6259 5035 110 110 1.76% 2.18%
D 6259 5035 5033 5033 80.41% 99.96%

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 15 127 152599 411.59 1530 1545 367.0
A 4 32 19540 49.03 1530 1545 367.0
A 8 14 7881 17.26 1530 1545 367.0
B 5 191 386796 1035.55 1577 1588 372.0
B 15 22 33859 86.75 1577 1588 372.0
B 5 249 19868 49.14 1577 1588 372.0
C 15 241 298784 760.12 1402 1445 391.2
C 9 83 25548 61.62 1402 1445 391.2
C 3 111 16636 38.83 1402 1445 391.2
D 1 239 11608243 50264.01 753 777 230.9
D 10 84 1012104 4379.37 753 777 230.9
D 10 85 9521 37.86 753 777 230.9

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