ASTROSAT CZTI

Data Quality Report

Orbit 16014

Creation date: 2024-06-27T17:16:33.161702
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/AS1C03_015T03_9000002366_16014cztM0_level2.evt modeM0/AS1C03_015T03_9000002366_16014cztM0_level2_quad_clean.evt
Size (bytes)532,399,680150,376,320
Size507.7 MB 143.4 MB
Events in quadrant A3,843,577997,739
Events in quadrant B4,156,6951,015,908
Events in quadrant C3,837,670993,803
Events in quadrant D3,729,537978,238

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172064
B0180183
C0169683
D0171883

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8184400.488759%
B81841652.016129%
C8184800.977517%
D8184290.354350%

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 8756 8189 4 4 0.05% 0.05%
B 8756 8189 79 79 0.90% 0.96%
C 8756 8189 0 0 0.00% 0.00%
D 8756 8189 6 6 0.07% 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 15 157 72611 372.48 951 928 192.4
A 14 239 36136 182.95 951 928 192.4
A 12 96 21397 106.36 951 928 192.4
B 0 245 227060 1242.12 957 931 182.1
B 7 220 70746 383.49 957 931 182.1
B 0 189 48757 262.71 957 931 182.1
C 14 238 143402 661.23 925 932 215.5
C 3 233 67346 308.24 925 932 215.5
C 8 128 10445 44.15 925 932 215.5
D 2 152 101678 444.39 930 902 226.8
D 2 16 45150 195.12 930 902 226.8
D 10 70 44295 191.35 930 902 226.8

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