ASTROSAT CZTI

Data Quality Report

Orbit 14368

Creation date: 2024-06-27T16:54:07.940484
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/AS1A04_149T01_9000002118_14368cztM0_level2.evt modeM0/AS1A04_149T01_9000002118_14368cztM0_level2_quad_clean.evt
Size (bytes)260,435,52052,174,080
Size248.4 MB 49.8 MB
Events in quadrant A1,799,015330,832
Events in quadrant B1,982,373335,541
Events in quadrant C2,003,999330,935
Events in quadrant D1,847,355319,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076622
B082421
C080371
D079561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A372590.241611%
B3725370.993289%
C372570.187919%
D3725160.429530%

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 4796 3727 0 0 0.00% 0.00%
B 4796 3727 11 11 0.23% 0.30%
C 4796 3727 0 0 0.00% 0.00%
D 4796 3727 11 11 0.23% 0.30%

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 12 189 32201 336.03 457 446 94.5
A 0 226 4180 39.51 457 446 94.5
A 15 69 3849 36.01 457 446 94.5
B 0 229 77205 876.93 456 444 87.5
B 0 189 39494 446.11 456 444 87.5
B 0 219 16687 185.56 456 444 87.5
C 3 233 263383 2515.49 445 447 104.5
C 10 22 5569 49.0 445 447 104.5
C 13 61 3163 25.98 445 447 104.5
D 2 120 46692 435.22 442 431 106.3
D 10 172 45198 421.17 442 431 106.3
D 12 110 28416 263.28 442 431 106.3

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