ASTROSAT CZTI

Data Quality Report

Orbit 09331

Creation date: 2024-06-27T15:44:36.300363
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/AS1G07_009T01_9000001318_09331cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09331cztM0_level2_quad_clean.evt
Size (bytes)158,785,92012,326,400
Size151.4 MB 11.8 MB
Events in quadrant A1,373,43752,090
Events in quadrant B1,004,88555,860
Events in quadrant C941,04553,946
Events in quadrant D1,339,04453,060

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05459114
B0446167
C0441861
D0554887

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2174552.529899%
B217410.045998%
C217600.000000%
D2173763.497469%

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 2206 2206 33 33 1.50% 1.50%
B 2206 2205 0 0 0.00% 0.00%
C 2206 2205 0 0 0.00% 0.00%
D 2206 2205 56 56 2.54% 2.54%

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 8 5 378360 7041.58 251 245 53.7
A 1 162 11604 211.54 251 245 53.7
A 13 251 6259 112.0 251 245 53.7
B 12 111 5347 101.45 252 246 50.3
B 0 230 5125 97.04 252 246 50.3
B 3 209 4549 85.58 252 246 50.3
C 13 61 1812 27.42 240 241 57.3
C 8 222 1302 18.52 240 241 57.3
C 3 202 628 6.75 240 241 57.3
D 1 52 373282 5952.46 240 233 62.7
D 12 233 17227 271.16 240 233 62.7
D 2 14 10172 158.59 240 233 62.7

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