ASTROSAT CZTI

Data Quality Report

Orbit 08729

Creation date: 2024-06-27T15:36:22.623186
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/AS1A02_132T01_9000001212_08729cztM0_level2.evt modeM0/AS1A02_132T01_9000001212_08729cztM0_level2_quad_clean.evt
Size (bytes)125,830,08035,974,080
Size120.0 MB 34.3 MB
Events in quadrant A931,940236,042
Events in quadrant B924,124246,567
Events in quadrant C931,271241,722
Events in quadrant D896,118230,788

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038951
B038561
C038561
D038761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183480.436205%
B183450.272628%
C183490.490731%
D183410.054526%

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 1834 1834 2 2 0.11% 0.11%
B 1834 1834 0 0 0.00% 0.00%
C 1834 1834 5 5 0.27% 0.27%
D 1834 1834 0 0 0.00% 0.00%

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 13 251 26577 550.97 229 225 47.8
A 5 16 21473 444.26 229 225 47.8
A 2 79 2576 49.16 229 225 47.8
B 12 111 4692 95.98 236 231 46.5
B 11 111 3917 79.31 236 231 46.5
B 4 80 3083 61.36 236 231 46.5
C 14 234 21902 389.24 231 232 55.7
C 14 67 5818 100.34 231 232 55.7
C 13 61 1653 25.52 231 232 55.7
D 1 52 16570 278.1 224 219 58.8
D 2 14 10546 175.64 224 219 58.8
D 2 152 8218 136.05 224 219 58.8

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