ASTROSAT CZTI

Data Quality Report

Orbit 28184

Creation date: 2024-06-27T19:48:56.559177
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_073T05_9000004068_28184cztM0_level2.evt modeM0/AS1A10_073T05_9000004068_28184cztM0_level2_quad_clean.evt
Size (bytes)468,313,92097,240,320
Size446.6 MB 92.7 MB
Events in quadrant A3,105,613646,458
Events in quadrant B3,328,571646,751
Events in quadrant C3,130,765609,282
Events in quadrant D4,191,015603,603

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129060
B0136590
C0131250
D0164980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6294530.842072%
B6294821.302828%
C6294771.223387%
D62941882.986972%

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 7479 6294 0 0 0.00% 0.00%
B 7479 6295 6 6 0.08% 0.10%
C 7479 6295 4 4 0.05% 0.06%
D 7479 6295 175 175 2.34% 2.78%

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 13 254 10160 58.48 802 787 160.3
A 3 137 7233 40.22 802 787 160.3
A 0 226 6952 38.47 802 787 160.3
B 15 32 222899 1503.42 785 768 147.8
B 12 111 17774 115.1 785 768 147.8
B 11 111 16290 105.06 785 768 147.8
C 14 238 123900 721.85 746 752 170.6
C 3 233 80519 467.57 746 752 170.6
C 15 208 16598 92.88 746 752 170.6
D 1 52 698279 3854.17 760 740 181.0
D 2 250 260692 1436.33 760 740 181.0
D 5 222 196317 1080.64 760 740 181.0

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