ASTROSAT CZTI

Data Quality Report

Orbit 47314

Creation date: 2024-06-28T04:21:45.395912
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/AS1A13_093T23_9000006316_47314cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47314cztM0_level2_quad_clean.evt
Size (bytes)495,443,520106,015,680
Size472.5 MB 101.1 MB
Events in quadrant A7,062,154698,504
Events in quadrant B3,068,140745,967
Events in quadrant C3,990,699685,104
Events in quadrant D3,725,047635,565

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253243
B0132853
C0161913
D0154463

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63673595.638448%
B6367400.628239%
C63682123.329146%
D63681271.994347%

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 7537 6369 265 265 3.52% 4.16%
B 7537 6369 4 4 0.05% 0.06%
C 7538 6370 134 134 1.78% 2.10%
D 7538 6370 105 105 1.39% 1.65%

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 10 83 3573452 23767.64 717 703 150.3
A 9 191 636335 4228.53 717 703 150.3
A 15 235 45731 299.55 717 703 150.3
B 0 190 89035 624.95 729 709 141.3
B 12 111 18225 123.93 729 709 141.3
B 5 172 17288 117.3 729 709 141.3
C 3 233 564561 3434.38 698 703 164.2
C 12 2 502649 3057.28 698 703 164.2
C 14 254 189095 1147.47 698 703 164.2
D 8 176 445703 2524.7 699 677 176.3
D 6 112 379367 2148.37 699 677 176.3
D 12 128 51620 289.01 699 677 176.3

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