ASTROSAT CZTI

Data Quality Report

Orbit 33450

Creation date: 2024-06-27T20:48:59.293724
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/AS1A11_065T07_9000004798_33450cztM0_level2.evt modeM0/AS1A11_065T07_9000004798_33450cztM0_level2_quad_clean.evt
Size (bytes)495,711,36091,630,080
Size472.7 MB 87.4 MB
Events in quadrant A2,575,467612,953
Events in quadrant B3,630,695617,902
Events in quadrant C3,265,705601,282
Events in quadrant D5,166,289556,014

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111703
B0144242
C0129162
D0191852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A552890.162808%
B55282083.762663%
C5528821.483357%
D55282764.992764%

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 7411 5529 0 0 0.00% 0.00%
B 7411 5529 149 149 2.01% 2.69%
C 7411 5529 68 68 0.92% 1.23%
D 7411 5529 257 257 3.47% 4.65%

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 13 6 11143 78.61 663 653 133.4
A 13 254 9140 63.6 663 653 133.4
A 3 137 6257 42.0 663 653 133.4
B 5 172 692003 5522.59 658 643 125.2
B 5 255 192444 1532.11 658 643 125.2
B 0 213 61742 488.06 658 643 125.2
C 1 23 253613 1716.56 639 644 147.4
C 15 214 239201 1618.77 639 644 147.4
C 9 187 161513 1091.6 639 644 147.4
D 8 195 1546494 10061.18 626 610 153.6
D 2 250 820438 5335.74 626 610 153.6
D 12 218 96122 621.63 626 610 153.6

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