ASTROSAT CZTI

Data Quality Report

Orbit 28351

Creation date: 2024-06-27T19:50:48.623442
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/AS1A10_116T01_9000004082_28351cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28351cztM0_level2_quad_clean.evt
Size (bytes)487,457,28095,855,040
Size464.9 MB 91.4 MB
Events in quadrant A3,707,085625,048
Events in quadrant B3,072,377646,764
Events in quadrant C2,957,807610,103
Events in quadrant D4,601,192584,701

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151760
B0130710
C0128790
D0178130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62522393.822777%
B6253490.783624%
C6253691.103470%
D62532253.598273%

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 7202 6253 171 171 2.37% 2.73%
B 7203 6254 4 4 0.06% 0.06%
C 7203 6254 0 0 0.00% 0.00%
D 7203 6254 173 173 2.40% 2.77%

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 15 174 764736 4917.27 762 745 155.4
A 13 254 10172 60.67 762 745 155.4
A 3 137 7633 44.33 762 745 155.4
B 10 245 26298 173.47 761 743 147.3
B 12 111 18434 120.09 761 743 147.3
B 0 230 18290 119.11 761 743 147.3
C 14 238 116836 678.63 728 730 171.1
C 13 61 5012 25.03 728 730 171.1
C 3 233 3055 13.59 728 730 171.1
D 1 52 1355924 7713.0 728 708 175.7
D 8 195 387180 2199.54 728 708 175.7
D 2 250 85181 480.76 728 708 175.7

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