ASTROSAT CZTI

Data Quality Report

Orbit 12349

Creation date: 2024-06-27T16:25:55.041413
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_210T02_9000001826_12349cztM0_level2.evt modeM0/AS1A04_210T02_9000001826_12349cztM0_level2_quad_clean.evt
Size (bytes)142,312,32012,752,640
Size135.7 MB 12.2 MB
Events in quadrant A1,054,40162,178
Events in quadrant B1,123,06864,767
Events in quadrant C949,97464,766
Events in quadrant D1,056,33560,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042572
B044741
C039901
D043271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18171659.080903%
B181719110.511833%
C18171075.888828%
D18171297.099615%

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 2523 1819 0 0 0.00% 0.00%
B 2523 1819 6 6 0.24% 0.33%
C 2523 1819 2 2 0.08% 0.11%
D 2523 1819 17 17 0.67% 0.93%

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 1 162 29030 555.59 243 237 51.8
A 7 16 26799 512.54 243 237 51.8
A 13 251 15954 303.27 243 237 51.8
B 4 239 160000 3215.84 241 234 49.7
B 3 64 13931 275.7 241 234 49.7
B 12 111 5649 109.0 241 234 49.7
C 15 208 21138 362.4 237 237 57.7
C 13 61 1726 25.82 237 237 57.7
C 8 222 928 11.98 237 237 57.7
D 1 52 110687 1870.73 235 226 59.0
D 10 253 35933 604.72 235 226 59.0
D 13 122 5378 87.25 235 226 59.0

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