ASTROSAT CZTI

Data Quality Report

Orbit 15763

Creation date: 2024-06-27T17:13:33.997315
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/AS1G08_028T01_9000002334_15763cztM0_level2.evt modeM0/AS1G08_028T01_9000002334_15763cztM0_level2_quad_clean.evt
Size (bytes)113,008,32021,579,840
Size107.8 MB 20.6 MB
Events in quadrant A805,765136,742
Events in quadrant B845,505141,353
Events in quadrant C811,041132,851
Events in quadrant D853,617129,158

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033452
B034621
C033511
D035761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1527181.178782%
B1527402.619515%
C1527342.226588%
D1527181.178782%

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 2833 1529 0 0 0.00% 0.00%
B 2833 1529 0 0 0.00% 0.00%
C 2833 1529 0 0 0.00% 0.00%
D 2833 1529 1 1 0.04% 0.07%

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 4 2 3572 76.77 208 203 43.9
A 0 226 1886 38.35 208 203 43.9
A 12 194 1478 29.05 208 203 43.9
B 0 189 7781 180.71 210 205 41.9
B 0 230 6739 155.85 210 205 41.9
B 12 111 4613 105.14 210 205 41.9
C 14 238 31034 644.88 198 200 47.8
C 7 247 2820 54.8 198 200 47.8
C 3 233 1924 36.06 198 200 47.8
D 1 52 91099 1742.31 198 193 52.2
D 5 51 6599 122.78 198 193 52.2
D 2 234 5215 96.25 198 193 52.2

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