ASTROSAT CZTI

Data Quality Report

Orbit 12356

Creation date: 2024-06-27T16:26:00.017326
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/AS1A04_210T03_9000001830_12356cztM0_level2.evt modeM0/AS1A04_210T03_9000001830_12356cztM0_level2_quad_clean.evt
Size (bytes)545,109,12089,426,880
Size519.9 MB 85.3 MB
Events in quadrant A4,765,249562,426
Events in quadrant B3,318,285583,986
Events in quadrant C3,092,675572,693
Events in quadrant D4,882,778526,091

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188613
B0141542
C0138252
D0191932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6638991.491413%
B6638320.482073%
C6638170.256101%
D66384196.312142%

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 7674 6640 6 6 0.08% 0.09%
B 7674 6640 13 13 0.17% 0.20%
C 7674 6640 5 5 0.07% 0.08%
D 7674 6640 517 517 6.74% 7.79%

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 15 692241 4407.49 772 754 156.9
A 13 251 436983 2780.49 772 754 156.9
A 1 162 269985 1716.06 772 754 156.9
B 4 239 107611 715.31 781 763 149.4
B 0 230 67642 447.73 781 763 149.4
B 0 197 26045 169.26 781 763 149.4
C 15 208 118818 664.46 761 766 177.7
C 13 61 5638 27.42 761 766 177.7
C 14 238 5084 24.3 761 766 177.7
D 1 52 1667381 9234.15 743 721 180.5
D 13 104 101038 555.81 743 721 180.5
D 10 199 97752 537.6 743 721 180.5

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