ASTROSAT CZTI

Data Quality Report

Orbit 44315

Creation date: 2024-06-27T23:02:00.666053
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/AS1A13_004T13_9000005988_44315cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44315cztM0_level2_quad_clean.evt
Size (bytes)200,491,20048,764,160
Size191.2 MB 46.5 MB
Events in quadrant A2,376,803330,624
Events in quadrant B1,609,927337,554
Events in quadrant C1,316,714321,875
Events in quadrant D1,908,904295,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090461
B064941
C057041
D074401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2668973.635682%
B2668873.260870%
C2669331.236418%
D26691043.896590%

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 2668 2668 10 10 0.37% 0.37%
B 2668 2668 34 34 1.27% 1.27%
C 2669 2669 9 9 0.34% 0.34%
D 2669 2669 68 68 2.55% 2.55%

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 10 83 755284 10873.99 329 322 69.4
A 15 223 322799 4644.75 329 322 69.4
A 0 243 19466 275.74 329 322 69.4
B 5 172 175590 2707.88 323 314 64.7
B 4 158 52119 800.35 323 314 64.7
B 5 255 21420 326.07 323 314 64.7
C 14 254 65760 867.88 316 317 75.4
C 3 233 8413 107.37 316 317 75.4
C 1 3 3254 38.95 316 317 75.4
D 5 171 183103 2255.43 322 313 81.0
D 13 249 170186 2096.04 322 313 81.0
D 5 222 117067 1440.62 322 313 81.0

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