ASTROSAT CZTI

Data Quality Report

Orbit 17007

Creation date: 2024-06-27T17:30:34.686699
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/AS1A05_143T01_9000002524_17007cztM0_level2.evt modeM0/AS1A05_143T01_9000002524_17007cztM0_level2_quad_clean.evt
Size (bytes)43,064,64012,061,440
Size41.1 MB 11.5 MB
Events in quadrant A270,61081,922
Events in quadrant B292,73586,134
Events in quadrant C296,29981,623
Events in quadrant D410,39375,526

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010991
B012261
C012601
D015391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44820.446429%
B44840.892857%
C448112.455357%
D448388.482143%

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 449 449 0 0 0.00% 0.00%
B 449 449 1 1 0.22% 0.22%
C 449 449 0 0 0.00% 0.00%
D 449 449 30 30 6.68% 6.68%

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 0 226 583 31.58 70 68 16.3
A 12 194 493 26.06 70 68 16.3
A 3 137 435 22.5 70 68 16.3
B 4 48 3506 220.6 72 70 15.6
B 0 230 2686 167.96 72 70 15.6
B 14 1 1737 107.03 72 70 15.6
C 3 233 10999 590.13 70 70 18.5
C 14 238 10520 564.27 70 70 18.5
C 9 54 868 43.09 70 70 18.5
D 1 52 152816 8440.35 66 64 18.1
D 4 239 3122 168.97 66 64 18.1
D 3 238 1517 80.29 66 64 18.1

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