ASTROSAT CZTI

Data Quality Report

Orbit 13123

Creation date: 2024-06-27T16:36:37.279988
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_031T02_9000001934_13123cztM0_level2.evt modeM0/AS1G08_031T02_9000001934_13123cztM0_level2_quad_clean.evt
Size (bytes)284,040,00069,471,360
Size270.9 MB 66.3 MB
Events in quadrant A2,092,066458,350
Events in quadrant B2,564,974441,681
Events in quadrant C1,779,644470,296
Events in quadrant D1,894,263453,440

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089852
B0104081
C081321
D085811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3966741.865860%
B39663208.068583%
C3966260.655572%
D3966260.655572%

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 4987 3968 46 46 0.92% 1.16%
B 4987 3968 149 149 2.99% 3.76%
C 4987 3968 0 0 0.00% 0.00%
D 4987 3968 2 2 0.04% 0.05%

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 209889 2218.87 463 454 94.4
A 15 223 32594 340.51 463 454 94.4
A 12 189 30124 314.34 463 454 94.4
B 4 239 704631 8279.52 442 431 85.1
B 3 64 77336 904.2 442 431 85.1
B 0 197 13138 149.4 442 431 85.1
C 13 61 3296 26.78 454 456 106.0
C 12 4 3171 25.6 454 456 106.0
C 15 208 2036 14.9 454 456 106.0
D 1 52 155978 1427.37 452 438 109.0
D 2 234 15339 136.74 452 438 109.0
D 14 49 8798 76.72 452 438 109.0

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