ASTROSAT CZTI

Data Quality Report

Orbit 07423

Creation date: 2024-06-27T15:19:33.559569
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/AS1G06_138T01_9000001020_07423cztM0_level2.evt modeM0/AS1G06_138T01_9000001020_07423cztM0_level2_quad_clean.evt
Size (bytes)175,464,00014,662,080
Size167.3 MB 14.0 MB
Events in quadrant A1,199,09669,185
Events in quadrant B1,275,08169,704
Events in quadrant C1,297,23468,633
Events in quadrant D1,380,14765,964

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050301
B052721
C053951
D056551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2352130.552721%
B2352230.977891%
C235270.297619%
D235290.382653%

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 2352 2352 1 1 0.04% 0.04%
B 2352 2352 1 1 0.04% 0.04%
C 2352 2352 0 0 0.00% 0.00%
D 2352 2352 2 2 0.09% 0.09%

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 15 234 7357 111.15 308 303 63.5
A 0 226 3137 44.66 308 303 63.5
A 3 1 2942 41.58 308 303 63.5
B 0 214 47152 780.58 308 302 60.0
B 10 245 24530 403.67 308 302 60.0
B 12 111 5477 86.22 308 302 60.0
C 9 68 125583 1785.48 300 302 70.2
C 13 61 2193 26.95 300 302 70.2
C 14 67 902 8.55 300 302 70.2
D 8 195 162180 2146.71 302 293 75.4
D 2 216 23436 306.89 302 293 75.4
D 5 233 14568 189.29 302 293 75.4

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