ASTROSAT CZTI

Data Quality Report

Orbit 04228

Creation date: 2024-06-27T14:39:04.024331
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/AS1G05_240T01_9000000536_04228cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04228cztM0_level2_quad_clean.evt
Size (bytes)528,111,36052,824,960
Size503.6 MB 50.4 MB
Events in quadrant A5,300,139248,036
Events in quadrant B3,353,064313,081
Events in quadrant C2,914,086302,198
Events in quadrant D3,996,921293,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199203
B0140082
C0129622
D0165232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A633297515.397979%
B63321261.989893%
C6332370.584334%
D6332630.994946%

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 7467 6334 792 792 10.61% 12.50%
B 7467 6334 48 48 0.64% 0.76%
C 7467 6335 0 0 0.00% 0.00%
D 7467 6335 6 6 0.08% 0.09%

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 12 247 1780866 12420.72 699 683 143.3
A 0 50 730567 5092.56 699 683 143.3
A 15 234 81441 563.47 699 683 143.3
B 3 0 226266 1518.62 775 758 148.5
B 14 167 69634 463.82 775 758 148.5
B 4 81 15009 95.97 775 758 148.5
C 9 144 24490 137.86 737 741 172.3
C 13 61 6253 32.0 737 741 172.3
C 10 65 5643 28.46 737 741 172.3
D 11 132 1051755 5855.28 739 718 179.5
D 13 72 35904 196.02 739 718 179.5
D 2 31 25101 135.84 739 718 179.5

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