ASTROSAT CZTI

Data Quality Report

Orbit 33447

Creation date: 2024-06-27T20:48:56.951883
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/AS1A11_065T02_9000004796_33447cztM0_level2.evt modeM0/AS1A11_065T02_9000004796_33447cztM0_level2_quad_clean.evt
Size (bytes)143,326,08029,067,840
Size136.7 MB 27.7 MB
Events in quadrant A717,281197,233
Events in quadrant B975,482192,359
Events in quadrant C1,033,609191,968
Events in quadrant D1,503,077180,117

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032341
B039401
C043451
D055431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160310.062383%
B1603472.932002%
C1603130.810979%
D1603684.242046%

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 1603 1603 0 0 0.00% 0.00%
B 1603 1603 33 33 2.06% 2.06%
C 1603 1603 10 10 0.62% 0.62%
D 1603 1603 70 70 4.37% 4.37%

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 6 3182 75.68 184 179 39.7
A 13 254 2800 66.05 184 179 39.7
A 10 83 2299 53.43 184 179 39.7
B 5 172 139787 3779.86 183 178 36.9
B 5 200 43128 1162.85 183 178 36.9
B 0 190 18461 495.01 183 178 36.9
C 10 49 194675 4420.77 182 183 44.0
C 15 214 71364 1617.93 182 183 44.0
C 0 10 46677 1056.8 182 183 44.0
D 8 195 416550 9051.57 178 172 46.0
D 12 218 201975 4386.96 178 172 46.0
D 12 6 69429 1505.57 178 172 46.0

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