ASTROSAT CZTI

Data Quality Report

Orbit 33547

Creation date: 2024-06-27T20:50:00.583759
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/AS1A11_060T01_9000004808_33547cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33547cztM0_level2_quad_clean.evt
Size (bytes)914,598,720155,280,960
Size872.2 MB 148.1 MB
Events in quadrant A5,343,5511,010,146
Events in quadrant B6,071,5071,008,959
Events in quadrant C6,137,185998,530
Events in quadrant D9,425,145945,586

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228394
B0249153
C0248363
D0352673

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02160
B02160
C02160
D02160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106911181.103732%
B106911631.524647%
C106912071.936208%
D106915775.397063%

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 13497 10693 42 42 0.31% 0.39%
B 13497 10693 98 98 0.73% 0.92%
C 13497 10693 141 141 1.04% 1.32%
D 13497 10692 565 565 4.19% 5.28%

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 15 169 497457 1995.48 1247 1223 248.7
A 13 6 22265 84.62 1247 1223 248.7
A 13 254 18566 69.74 1247 1223 248.7
B 5 172 466409 1955.37 1242 1209 237.9
B 4 170 180029 751.63 1242 1209 237.9
B 0 229 128939 536.89 1242 1209 237.9
C 0 10 508015 1827.39 1199 1208 277.3
C 15 214 458511 1648.89 1199 1208 277.3
C 3 233 275857 990.3 1199 1208 277.3
D 8 195 2098222 7195.89 1193 1161 291.4
D 1 47 1441614 4942.8 1193 1161 291.4
D 2 250 496833 1700.86 1193 1161 291.4

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