ASTROSAT CZTI

Data Quality Report

Orbit 33222

Creation date: 2024-06-27T20:46:16.771334
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_067T01_9000004774_33222cztM0_level2.evt modeM0/AS1A10_067T01_9000004774_33222cztM0_level2_quad_clean.evt
Size (bytes)199,840,32020,223,360
Size190.6 MB 19.3 MB
Events in quadrant A978,885124,212
Events in quadrant B1,361,313120,956
Events in quadrant C1,035,650119,265
Events in quadrant D2,546,792110,225

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038882
B052321
C041701
D089071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187830.159744%
B1878472.502662%
C1878231.224707%
D187839220.873269%

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 4000 1879 0 0 0.00% 0.00%
B 4000 1879 26 26 0.65% 1.38%
C 4000 1879 16 16 0.40% 0.85%
D 4000 1879 341 341 8.53% 18.15%

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 47 16881 326.45 247 242 51.0
A 13 254 3605 65.98 247 242 51.0
A 13 6 3006 54.23 247 242 51.0
B 4 170 250739 5249.82 243 236 47.7
B 5 172 116122 2428.63 243 236 47.7
B 0 219 17559 363.03 243 236 47.7
C 0 10 83715 1516.45 234 236 55.0
C 1 23 17985 322.42 234 236 55.0
C 14 254 9495 168.2 234 236 55.0
D 8 195 1240757 20412.27 226 220 60.8
D 2 250 139230 2287.32 226 220 60.8
D 10 203 99281 1629.99 226 220 60.8

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