ASTROSAT CZTI

Data Quality Report

Orbit 25363

Creation date: 2024-06-27T19:16:49.551859
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/AS1A09_061T02_9000003708_25363cztM0_level2.evt modeM0/AS1A09_061T02_9000003708_25363cztM0_level2_quad_clean.evt
Size (bytes)123,842,88031,368,960
Size118.1 MB 29.9 MB
Events in quadrant A897,274213,696
Events in quadrant B743,739213,988
Events in quadrant C735,004204,475
Events in quadrant D1,264,663200,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036020
B031810
C032230
D048690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A157610.063452%
B157720.126823%
C157740.253646%
D1577503.170577%

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 1576 1576 0 0 0.00% 0.00%
B 1577 1577 0 0 0.00% 0.00%
C 1577 1577 0 0 0.00% 0.00%
D 1577 1577 56 56 3.55% 3.55%

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 6 16 152999 3923.99 186 182 38.9
A 3 1 13177 333.68 186 182 38.9
A 15 173 12346 312.34 186 182 38.9
B 0 229 23544 645.39 182 178 36.2
B 0 219 4966 132.25 182 178 36.2
B 12 111 3966 104.63 182 178 36.2
C 3 233 36079 874.46 170 171 41.1
C 14 238 27956 676.65 170 171 41.1
C 7 87 5073 119.38 170 171 41.1
D 8 195 271880 6282.03 175 170 43.3
D 1 52 255210 5896.61 175 170 43.3
D 7 238 56978 1313.42 175 170 43.3

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