ASTROSAT CZTI

Data Quality Report

Orbit 14301

Creation date: 2024-06-27T16:53:11.923752
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_130T03_9000002108_14301cztM0_level2.evt modeM0/AS1A04_130T03_9000002108_14301cztM0_level2_quad_clean.evt
Size (bytes)235,128,96054,558,720
Size224.2 MB 52.0 MB
Events in quadrant A1,643,946365,338
Events in quadrant B1,782,642368,160
Events in quadrant C1,743,212354,088
Events in quadrant D1,745,116350,088

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066012
B071081
C068821
D070041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3014652.156603%
B3014902.986065%
C3014501.658925%
D3014622.057067%

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 4270 3016 1 1 0.02% 0.03%
B 4270 3016 10 10 0.23% 0.33%
C 4270 3016 0 0 0.00% 0.00%
D 4270 3016 14 14 0.33% 0.46%

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 12 189 26700 307.74 417 409 85.4
A 8 15 9089 101.6 417 409 85.4
A 0 226 3817 39.89 417 409 85.4
B 0 229 66977 829.01 412 402 80.3
B 10 245 38412 473.31 412 402 80.3
B 0 189 21415 261.66 412 402 80.3
C 3 233 167861 1782.04 403 405 94.0
C 13 61 2793 25.41 403 405 94.0
C 10 22 2778 25.25 403 405 94.0
D 5 222 54700 557.58 406 397 97.4
D 10 199 52245 532.37 406 397 97.4
D 12 110 31903 323.5 406 397 97.4

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