ASTROSAT CZTI

Data Quality Report

Orbit 13373

Creation date: 2024-06-27T16:39:47.450108
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/AS1G08_082T01_9000001986_13373cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13373cztM0_level2_quad_clean.evt
Size (bytes)142,090,56020,188,800
Size135.5 MB 19.3 MB
Events in quadrant A993,834120,727
Events in quadrant B1,031,782123,404
Events in quadrant C937,064118,886
Events in quadrant D1,213,202113,396

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040410
B042180
C038590
D047560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1831211.146914%
B1831150.819224%
C183110.054615%
D1831351.911524%

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 1832 1832 11 11 0.60% 0.60%
B 1832 1832 12 12 0.66% 0.66%
C 1832 1832 0 0 0.00% 0.00%
D 1832 1832 32 32 1.75% 1.75%

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 9 143 50329 996.56 243 238 50.3
A 1 162 3859 72.04 243 238 50.3
A 15 69 2941 53.78 243 238 50.3
B 10 246 64786 1363.6 242 238 47.3
B 3 209 8881 182.59 242 238 47.3
B 4 142 6539 133.11 242 238 47.3
C 14 220 26258 481.67 229 230 54.0
C 3 233 16902 308.53 229 230 54.0
C 13 61 1607 25.48 229 230 54.0
D 14 34 160438 2845.39 228 222 56.3
D 8 195 85130 1507.94 228 222 56.3
D 1 52 76310 1351.3 228 222 56.3

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