ASTROSAT CZTI

Data Quality Report

Orbit 30568

Creation date: 2024-06-27T20:17:03.674906
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/AS1A10_094T78_9000004402_30568cztM0_level2.evt modeM0/AS1A10_094T78_9000004402_30568cztM0_level2_quad_clean.evt
Size (bytes)219,559,68057,378,240
Size209.4 MB 54.7 MB
Events in quadrant A1,336,215388,621
Events in quadrant B2,123,327386,374
Events in quadrant C1,459,753380,291
Events in quadrant D1,529,843373,874

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058580
B087400
C060410
D062380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A292120.068470%
B2921100.342349%
C2922120.410678%
D292280.273785%

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 2921 2921 0 0 0.00% 0.00%
B 2921 2921 1 1 0.03% 0.03%
C 2922 2922 0 0 0.00% 0.00%
D 2922 2922 7 7 0.24% 0.24%

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 13 254 4723 62.26 346 339 70.4
A 3 137 3219 40.9 346 339 70.4
A 0 226 2912 36.54 346 339 70.4
B 6 159 786842 12141.59 337 329 64.8
B 12 111 7593 112.14 337 329 64.8
B 11 111 7202 106.1 337 329 64.8
C 3 233 101482 1296.35 332 334 78.0
C 14 238 53727 684.3 332 334 78.0
C 2 114 6766 82.43 332 334 78.0
D 8 195 119429 1457.05 340 330 81.7
D 2 250 32457 393.04 340 330 81.7
D 10 253 32059 388.17 340 330 81.7

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