ASTROSAT CZTI

Data Quality Report

Orbit 10755

Creation date: 2024-06-27T16:03:26.461841
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_051T01_9000001550_10755cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10755cztM0_level2_quad_clean.evt
Size (bytes)199,523,52032,302,080
Size190.3 MB 30.8 MB
Events in quadrant A1,267,022207,733
Events in quadrant B1,788,341202,802
Events in quadrant C1,185,113208,410
Events in quadrant D1,645,184194,246

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051312
B068701
C049521
D064141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2278883.863038%
B227824610.798946%
C2278381.668130%
D22781215.311677%

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 3528 2279 3 3 0.09% 0.13%
B 3528 2279 82 82 2.32% 3.60%
C 3528 2279 0 0 0.00% 0.00%
D 3528 2279 56 56 1.59% 2.46%

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 15 223 16536 248.6 315 307 65.3
A 15 174 13511 202.26 315 307 65.3
A 15 239 5750 83.38 315 307 65.3
B 0 85 254912 4173.56 306 299 61.0
B 4 239 245378 4017.28 306 299 61.0
B 4 81 41445 674.46 306 299 61.0
C 13 61 2258 27.41 303 304 71.3
C 14 234 1221 12.86 303 304 71.3
C 3 202 779 6.66 303 304 71.3
D 10 157 262146 3584.42 300 291 73.1
D 1 52 154784 2114.79 300 291 73.1
D 5 222 52413 713.47 300 291 73.1

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