ASTROSAT CZTI

Data Quality Report

Orbit 10784

Creation date: 2024-06-27T16:03:50.001455
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/AS1C02_045T03_9000001558_10784cztM0_level2.evt modeM0/AS1C02_045T03_9000001558_10784cztM0_level2_quad_clean.evt
Size (bytes)167,218,56032,149,440
Size159.5 MB 30.7 MB
Events in quadrant A866,361226,748
Events in quadrant B1,351,035217,580
Events in quadrant C741,239230,743
Events in quadrant D1,993,756179,238

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0342
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03794208
B05543483
C03460162
D081271109

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1640251.524390%
B15921579.861809%
C164100.000000%
D154940526.145901%

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 1722 1711 13 13 0.75% 0.76%
B 1722 1699 98 98 5.69% 5.77%
C 1722 1716 0 0 0.00% 0.00%
D 1722 1661 294 294 17.07% 17.70%

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 15 174 70184 1665.4 201 197 42.0
A 1 162 7273 168.38 201 197 42.0
A 11 29 3345 74.91 201 197 42.0
B 4 239 520382 13904.19 190 186 37.4
B 15 204 70681 1884.24 190 186 37.4
B 0 219 12476 328.5 190 186 37.4
C 13 61 1497 29.04 189 191 45.0
C 8 222 959 17.08 189 191 45.0
C 12 4 509 7.07 189 191 45.0
D 13 104 627158 15495.27 160 156 40.5
D 10 199 415530 10265.25 160 156 40.5
D 12 233 104478 2578.14 160 156 40.5

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