ASTROSAT CZTI

Data Quality Report

Orbit 20191213_C05_013T02_9000003364_level2

Creation date: 2019-12-14T13:05:34.843971
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1C05_013T02_9000003364cztM0_level2_bc.evt modeM0/AS1C05_013T02_9000003364cztM0_level2_quad_clean.evt
Size (bytes)269,864,640108,256,320
Size257.4 MB 103.2 MB
Events in quadrant A1,306,400756,871
Events in quadrant B1,336,838754,830
Events in quadrant C1,239,697723,395
Events in quadrant D3,869,039619,743

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125360
B0125960
C0124990
D0210600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60601031.699670%
B60601051.732673%
C60601252.062706%
D6060129221.320132%

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 7170 6060 0 0 0.00% 0.00%
B 7170 6060 0 0 0.00% 0.00%
C 7170 6060 0 0 0.00% 0.00%
D 7170 6059 760 760 10.60% 12.54%

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 13 252 11500 150.86 335 329 74.0
A 13 254 9490 123.72 335 329 74.0
A 0 226 2221 25.55 335 329 74.0
B 0 230 18420 280.24 334 327 64.6
B 0 228 16293 247.29 334 327 64.6
B 0 190 7563 112.08 334 327 64.6
C 10 22 7044 86.95 320 318 77.4
C 13 61 1853 19.84 320 318 77.4
C 0 10 1406 14.07 320 318 77.4
D 7 238 2201352 30582.88 294 283 72.0
D 1 52 286957 3983.21 294 283 72.0
D 12 233 119635 1658.34 294 283 72.0

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