ASTROSAT CZTI

Data Quality Report

Orbit 25647

Creation date: 2024-06-27T19:19:54.775050
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_013T02_9000003734_25647cztM0_level2.evt modeM0/AS1A09_013T02_9000003734_25647cztM0_level2_quad_clean.evt
Size (bytes)469,926,720103,201,920
Size448.2 MB 98.4 MB
Events in quadrant A3,182,820678,732
Events in quadrant B3,113,065702,297
Events in quadrant C3,186,813674,454
Events in quadrant D4,331,397640,257

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134950
B0133460
C0135360
D0171160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A615980.129891%
B6159200.324728%
C6160691.120130%
D61601011.639610%

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 7424 6160 0 0 0.00% 0.00%
B 7424 6160 1 1 0.01% 0.02%
C 7425 6161 0 0 0.00% 0.00%
D 7425 6161 69 69 0.93% 1.12%

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 8 192 182697 1174.02 777 762 155.0
A 13 254 9989 59.54 777 762 155.0
A 0 226 6806 39.0 777 762 155.0
B 12 111 16953 111.39 784 765 145.3
B 11 111 14989 97.87 784 765 145.3
B 14 111 13487 87.54 784 765 145.3
C 14 238 124922 704.78 764 769 176.2
C 3 233 72463 406.99 764 769 176.2
C 2 16 8623 44.58 764 769 176.2
D 8 195 703733 3839.6 760 738 183.1
D 1 52 507814 2769.53 760 738 183.1
D 2 244 208654 1135.59 760 738 183.1

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