ASTROSAT CZTI

Data Quality Report

Orbit 30545

Creation date: 2024-06-27T20:16:44.468970
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_053T17_9000004396_30545cztM0_level2.evt modeM0/AS1A10_053T17_9000004396_30545cztM0_level2_quad_clean.evt
Size (bytes)528,338,88072,371,520
Size503.9 MB 69.0 MB
Events in quadrant A3,137,045451,801
Events in quadrant B5,059,033445,528
Events in quadrant C3,277,579427,285
Events in quadrant D4,099,295426,425

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130491
B0194131
C0134301
D0159471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309861.363132%
B63101652.614897%
C63101612.551506%
D63103485.515055%

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 7109 6309 0 0 0.00% 0.00%
B 7110 6310 17 17 0.24% 0.27%
C 7110 6310 35 35 0.49% 0.55%
D 7110 6310 239 239 3.36% 3.79%

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 8 192 12596 73.0 810 795 161.7
A 13 254 11410 65.66 810 795 161.7
A 3 137 8022 44.7 810 795 161.7
B 6 159 1770963 11543.42 793 775 153.4
B 6 36 60858 391.8 793 775 153.4
B 4 171 51220 328.95 793 775 153.4
C 0 10 133846 750.87 756 760 177.2
C 14 238 131605 738.22 756 760 177.2
C 3 233 38402 212.37 756 760 177.2
D 7 238 706642 3914.27 766 747 180.3
D 8 195 242450 1340.27 766 747 180.3
D 1 52 111728 615.4 766 747 180.3

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