ASTROSAT CZTI

Data Quality Report

Orbit 34514

Creation date: 2022-02-15T11:15:10.613565
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/AS1A05_103T05_9000004930_34514cztM0_level2.evt modeM0/AS1A05_103T05_9000004930_34514cztM0_level2_quad_clean.evt
Size (bytes)546,482,88089,663,040
Size521.2 MB 85.5 MB
Events in quadrant A2,688,806596,770
Events in quadrant B4,105,592586,339
Events in quadrant C3,123,241590,178
Events in quadrant D6,241,014537,828

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118493
B0160542
C0128062
D0227062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A578590.155575%
B57853936.793431%
C5785601.037165%
D578568911.910112%

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 7128 5786 3 3 0.04% 0.05%
B 7128 5786 260 260 3.65% 4.49%
C 7128 5786 41 41 0.58% 0.71%
D 7128 5786 599 599 8.40% 10.35%

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 42105 304.93 669 655 135.9
A 9 143 30333 218.33 669 655 135.9
A 13 6 11510 79.86 669 655 135.9
B 5 172 1051784 8426.54 652 635 124.7
B 0 190 192780 1540.33 652 635 124.7
B 0 189 110672 882.11 652 635 124.7
C 15 214 242492 1602.28 651 656 150.9
C 0 10 147429 972.44 651 656 150.9
C 14 67 133050 877.17 651 656 150.9
D 7 80 1265091 7849.05 618 603 161.1
D 8 195 972831 6034.91 618 603 161.1
D 1 52 346313 2145.92 618 603 161.1

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