ASTROSAT CZTI

Data Quality Report

Orbit 11143

Creation date: 2024-06-27T16:08:51.947673
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_180T01_9000001622_11143cztM0_level2.evt modeM0/AS1A04_180T01_9000001622_11143cztM0_level2_quad_clean.evt
Size (bytes)392,791,68051,217,920
Size374.6 MB 48.8 MB
Events in quadrant A3,324,293308,847
Events in quadrant B2,974,485321,368
Events in quadrant C2,131,373315,247
Events in quadrant D3,162,737291,779

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01284824
B01168011
C091885
D01234916

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44452435.466817%
B44491914.293100%
C4451170.381937%
D44473417.668091%

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 5695 4455 167 167 2.93% 3.75%
B 5695 4455 79 79 1.39% 1.77%
C 5695 4456 2 2 0.04% 0.04%
D 5695 4456 281 281 4.93% 6.31%

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 8 5 546268 4882.95 547 536 111.8
A 14 238 529036 4728.76 547 536 111.8
A 8 15 86559 769.69 547 536 111.8
B 4 239 576807 5407.39 559 547 106.6
B 15 204 71277 663.7 559 547 106.6
B 4 80 47050 436.37 559 547 106.6
C 14 234 9888 73.82 539 541 126.6
C 9 204 8995 66.76 539 541 126.6
C 8 128 4012 27.41 539 541 126.6
D 10 253 955108 7663.34 513 500 124.6
D 10 199 71051 566.36 513 500 124.6
D 1 52 38563 305.56 513 500 124.6

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